IfcOpenShell/src/ifcopenshell-python/ifcopenshell/util/schema/ifc2x3_properties.json

{
    "Pset_ActionRequest": {
        "properties": {
            "RequestComments": {
                "description": "Comments that may be made on the request."
            },
            "RequestDescription": {
                "description": "The request description as provided."
            },
            "RequestSourceLabel": {
                "description": "A specific name or label that further qualifies the identity of a request source. In the event of an email, this may be the email address."
            },
            "RequestSourceName": {
                "description": "The person making the request, where known."
            },
            "RequestSourceType": {
                "description": "Identifies the predefined types of sources through which a request can be made."
            },
            "Status": {
                "description": "The status currently assigned to the request where: Hold = wait to see if further requests are received before deciding on action, NoAction = no action is required on this request, Schedule = plan action to take place as part of maintenance or other task planning/scheduling, Urgent = take action immediately."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcFacilitiesMgmtDomain/Pset_ActionRequest.xml"
    },
    "Pset_ActorCommon": {
        "properties": {
            "Category": {
                "description": "Designation of the category into which the actors in the population belong."
            },
            "NumberOfActors": {
                "description": "The number of actors that are to be dealt with together in the population."
            },
            "SkillLevel": {
                "description": "Skill level exhibited by the actor and which indicates an extent of their capability to perform actions on the artefacts upon which they can act."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcKernel/Pset_ActorCommon.xml"
    },
    "Pset_ActuatorTypeCommon": {
        "properties": {
            "FailPosition": {
                "description": "Specifies the required fail-safe position of the actuator."
            },
            "ManualOverride": {
                "description": "Identifies whether hand-operated operation is provided as an override (= TRUE) or not (= FALSE). Note that this value should be set to FALSE by default in the case of a Hand Operated Actuator."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcBuildingControlsDomain/Pset_ActuatorTypeCommon.xml"
    },
    "Pset_ActuatorTypeElectricActuator": {
        "properties": {
            "ActuatorInputPower": {
                "description": "Maximum input power requirement"
            },
            "ElectricActuatorType": {
                "description": "Enumeration that identifies electric actuator as defined by its operational principle."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcBuildingControlsDomain/Pset_ActuatorTypeElectricActuator.xml"
    },
    "Pset_ActuatorTypeHydraulicActuator": {
        "properties": {
            "InputFlowrate": {
                "description": "Maximum hydraulic flowrate requirement."
            },
            "InputPressure": {
                "description": "Maximum design pressure for the actuator."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcBuildingControlsDomain/Pset_ActuatorTypeHydraulicActuator.xml"
    },
    "Pset_ActuatorTypeLinearActuation": {
        "properties": {
            "Force": {
                "description": "Indicates the maximum close-off force for the actuator."
            },
            "Stroke": {
                "description": "Indicates the maximum distance the actuator must traverse."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcBuildingControlsDomain/Pset_ActuatorTypeLinearActuation.xml"
    },
    "Pset_ActuatorTypePneumaticActuator": {
        "properties": {
            "InputFlowrate": {
                "description": "Maximum input control air flowrate requirement"
            },
            "InputPressure": {
                "description": "Maximum input control air pressure requirement"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcBuildingControlsDomain/Pset_ActuatorTypePneumaticActuator.xml"
    },
    "Pset_ActuatorTypeRotationalActuation": {
        "properties": {
            "RangeAngle": {
                "description": "Indicates the maximum rotation the actuator must traverse."
            },
            "Torque": {
                "description": "Indicates the maximum close-off torque for the actuator."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcBuildingControlsDomain/Pset_ActuatorTypeRotationalActuation.xml"
    },
    "Pset_AirSideSystemInformation": {
        "properties": {
            "AirSideSystemDistributionType": {
                "description": "This enumeration defines the basic types of air side systems (e.g., SingleDuct, DualDuct, Multizone, etc.)"
            },
            "AirSideSystemType": {
                "description": "This enumeration specifies the basic types of possible air side systems (e.g., Constant Volume, Variable Volume, etc.)"
            },
            "AirflowSensible": {
                "description": "The air flowrate required to satisfy the sensible peak loads."
            },
            "ApplianceDiversity": {
                "description": "Diversity of appliance load."
            },
            "CoolingTemperatureDelta": {
                "description": "Cooling temperature difference for calculating space air flow rates"
            },
            "Description": {
                "description": "The description of the air side system."
            },
            "EnergyGainSensible": {
                "description": "The sum of total energy gains for the spaces served by the system during the peak cooling conditions, plus any system-level sensible energy gains."
            },
            "EnergyGainTotal": {
                "description": "The total amount of energy gains for the spaces served by the system during the peak cooling conditions, plus any system-level total energy gains."
            },
            "EnergyLoss": {
                "description": "The sum of energy losses for the spaces served by the system during the peak heating conditions."
            },
            "FanPower": {
                "description": "Fan motor loads contributing to the cooling load."
            },
            "HeatingTemperatureDelta": {
                "description": "Heating temperature difference for calculating space air flow rates"
            },
            "InfiltrationDiversitySummer": {
                "description": "Diversity factor for Summer infiltration."
            },
            "InfiltrationDiversityWinter": {
                "description": "Diversity factor for Winter infiltration."
            },
            "LightingDiversity": {
                "description": "Lighting diversity."
            },
            "LoadSafetyFactor": {
                "description": "Load safety factor."
            },
            "Name": {
                "description": "The name of the air side system"
            },
            "TotalAirflow": {
                "description": "The total design supply air flowrate required for the system for either heating or cooling conditions, whichever is greater."
            },
            "Ventilation": {
                "description": "Required outside air ventilation."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgServiceElements/Pset_AirSideSystemInformation.xml"
    },
    "Pset_AirTerminalBoxPHistory": {
        "properties": {
            "AirflowCurve": {
                "description": "Air flowrate versus damper position relationship;airflow = f ( valve position)."
            },
            "AtmosphericPressure": {
                "description": "Ambient atmospheric pressure."
            },
            "DamperPosition": {
                "description": "Control damper position, ranging from 0 to 1."
            },
            "Sound": {
                "description": "Sound performance."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_AirTerminalBoxPHistory.xml"
    },
    "Pset_AirTerminalBoxTypeCommon": {
        "properties": {
            "AirPressureRange": {
                "description": "Allowable air static pressure range at the entrance of the air terminal box."
            },
            "AirflowRateRange": {
                "description": "Range of airflow that can be delivered."
            },
            "ArrangementType": {
                "description": "Terminal box arrangement. SingleDuct: Terminal box receives warm or cold air from a single air supply duct. DualDuct: Terminal box receives warm and cold air from separate air supply ducts."
            },
            "HasFan": {
                "description": "Terminal box has a fan inside (fan powered box)."
            },
            "HasReturnAir": {
                "description": "Terminal box has return air mixed with supply air from duct work."
            },
            "HasSoundAttenuator": {
                "description": "Terminal box has a sound attenuator."
            },
            "HousingThickness": {
                "description": "Air terminal box housing material thickness."
            },
            "Material": {
                "description": "The primary material used to construct the air terminal box."
            },
            "NominalAirFlowRate": {
                "description": "Nominal airflow rate."
            },
            "NominalDamperDiameter": {
                "description": "Nominal damper diameter."
            },
            "NominalInletAirPressure": {
                "description": "Nominal airflow inlet static pressure."
            },
            "OperationTemperatureRange": {
                "description": "Allowable operational range of the ambient air temperature."
            },
            "ReheatType": {
                "description": "Terminal box reheat type."
            },
            "ReturnAirFractionRange": {
                "description": "Allowable return air fraction range as a fraction of discharge airflow."
            },
            "Weight": {
                "description": "Weight of the air terminal box."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_AirTerminalBoxTypeCommon.xml"
    },
    "Pset_AirTerminalPHistory": {
        "properties": {
            "AirFlowRate": {
                "description": "Volumetric flow rate."
            },
            "CenterlineAirVelocity": {
                "description": "Centerline air velocity versus distance from the diffuser and temperature differential; a function of distance from diffuser and temperature difference between supply air and room air."
            },
            "InductionRatio": {
                "description": "Induction ratio versus distance from the diffuser and its discharge direction; induction ratio (or entrainment ratio) is the ratio of the volumetric flow rate in the jet to the volumetric flow rate at the air terminal"
            },
            "NeckAirVelocity": {
                "description": "Air velocity at the neck."
            },
            "PressureDrop": {
                "description": "Drop in total pressure between inlet and outlet at nominal air-flow rate."
            },
            "SupplyAirTemperatureCooling": {
                "description": "Supply air temperature in cooling mode"
            },
            "SupplyAirTemperatureHeating": {
                "description": "Supply air temperature in heating mode"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_AirTerminalPHistory.xml"
    },
    "Pset_AirTerminalTypeCommon": {
        "properties": {
            "AirDiffusionPerformanceIndex": {
                "description": "The Air Diffusion Performance Index (ADPI) is used for cooling mode conditions. If several measurements of air velocity and air temperature are made throughout the occupied zone of a space, the ADPI is the percentage of locations where measurements were taken that meet the specifications for effective draft temperature and air velocity."
            },
            "AirFlowrateRange": {
                "description": "Air flowrate range within which the air terminal is designed to operate."
            },
            "AirFlowrateVersusFlowControlElement": {
                "description": "Air flowrate versus flow control element position at nominal pressure drop."
            },
            "CoreSetHorizontal": {
                "description": "Degree of horizontal (in the X-axis of the LocalPlacement) blade set from the centerline."
            },
            "CoreSetVertical": {
                "description": "Degree of vertical (in the Y-axis of the LocalPlacement) blade set from the centerline."
            },
            "CoreType": {
                "description": "Identifies the way the core of the AirTerminal is constructed."
            },
            "DischargeDirection": {
                "description": "Discharge direction of the air terminal. Parallel: discharges parallel to mounting surface designed so that flow attaches to the surface. Perpendicular:  discharges away from mounting surface. Adjustable: both parallel and perpendicular discharge."
            },
            "EffectiveArea": {
                "description": "Effective discharge area of the air terminal."
            },
            "FinishColor": {
                "description": "The finish color for the air terminal."
            },
            "FinishType": {
                "description": "The type of finish for the air terminal."
            },
            "FlowControlType": {
                "description": "Type of flow control element that may be included as a part of the construction of the air terminal."
            },
            "FlowPattern": {
                "description": "Flow pattern"
            },
            "HasIntegralControl": {
                "description": "If TRUE, a self powered temperature control is included in the AirTerminal."
            },
            "HasSoundAttenuator": {
                "description": "If TRUE, the air terminal has sound attenuation."
            },
            "HasThermalInsulation": {
                "description": "If TRUE, the air terminal has thermal insulation."
            },
            "Material": {
                "description": "The primary material used to construct the air terminal."
            },
            "MountingType": {
                "description": "The way the air terminal is mounted to the ceiling, wall, etc. Surface type is mounted to the surface of something (e.g., wall, duct, etc.). Flat flush type is mounted flat and flush with a surface. Lay-in type is mounted in a lay-in type ceiling (e.g., a dropped ceiling grid)."
            },
            "NeckArea": {
                "description": "Neck area of the air terminal."
            },
            "Shape": {
                "description": "Shape of the air terminal. Slot is typically a long narrow supply device with an aspect ratio generally greater than 10 to 1."
            },
            "TemperatureRange": {
                "description": "Temperature range within which the air terminal is designed to operate."
            },
            "ThrowLength": {
                "description": "The horizontal or vertical axial distance an airstream travels after leaving an AirTerminal before the maximum stream velocity is reduced to a specified terminal velocity under isothermal conditions at the upper value of the AirFlowrateRange."
            },
            "Weight": {
                "description": "Weight of the air terminal."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_AirTerminalTypeCommon.xml"
    },
    "Pset_AirTerminalTypeRectangular": {
        "properties": {
            "FaceType": {
                "description": "Identifies how the terminal face of an AirTerminal is constructed."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_AirTerminalTypeRectangular.xml"
    },
    "Pset_AirTerminalTypeRound": {
        "properties": {
            "FaceType": {
                "description": "Identifies how the terminal face of an AirTerminal is constructed."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_AirTerminalTypeRound.xml"
    },
    "Pset_AirTerminalTypeSlot": {
        "properties": {
            "NumberOfSlots": {
                "description": "Number of slots."
            },
            "SlotLength": {
                "description": "Slot length."
            },
            "SlotWidth": {
                "description": "Slot width."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_AirTerminalTypeSlot.xml"
    },
    "Pset_AirTerminalTypeSquare": {
        "properties": {
            "FaceType": {
                "description": "Identifies how the terminal face of an AirTerminal is constructed."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_AirTerminalTypeSquare.xml"
    },
    "Pset_AirToAirHeatRecoveryPHist": {
        "properties": {
            "AirPressureDropCurves": {
                "description": "Air pressure drop as function of air flow rate"
            },
            "DefrostTemperatureEffectiveness": {
                "description": "Temperature heat transfer effectiveness when defrosting is active."
            },
            "HumidityEffectiveness": {
                "description": "Humidity heat transfer effectiveness: The ratio of primary airflow absolute humidity changes to maximum possible absolute humidity changes."
            },
            "LatentHeatTransferRate": {
                "description": "Latent heat transfer rate"
            },
            "SensibleEffectiveness": {
                "description": "Sensible heat transfer effectiveness, where effectiveness is defined as the ratio of heat transfer to maximum possible heat transfer."
            },
            "SensibleEffectivenessTable": {
                "description": "Sensible heat transfer effectiveness curve as a function of the primary and secondary air flow rate."
            },
            "SensibleHeatTransferRate": {
                "description": "Sensible heat transfer rate"
            },
            "TemperatureEffectiveness": {
                "description": "Temperature heat transfer effectiveness: The ratio of primary airflow temperature changes to maximum possible temperature changes."
            },
            "TotalEffectiveness": {
                "description": "Total heat transfer effectiveness: The ratio of heat transfer to the maximum possible heat transfer."
            },
            "TotalEffectivenessTable": {
                "description": "Total heat transfer effectiveness curve as a function of the primary and secondary air flow rate."
            },
            "TotalHeatTransferRate": {
                "description": "Total heat transfer rate"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_AirToAirHeatRecoveryPHist.xml"
    },
    "Pset_AirToAirHeatRecoveryTypeCommon": {
        "properties": {
            "HasDefrost": {
                "description": "has the heat exchanger has defrost function or not"
            },
            "HeatTransferTypeEnum": {
                "description": "Type of heat transfer between the two air streams."
            },
            "MediaMaterial": {
                "description": "The primary media material used for heat transfer."
            },
            "OperationalTemperatureRange": {
                "description": "Allowable operation ambient air temperature range"
            },
            "PrimaryAirflowRateRange": {
                "description": "possible range of primary airflow that can be delivered"
            },
            "SecondaryAirflowRateRange": {
                "description": "possible range of secondary airflow that can be delivered"
            },
            "Weight": {
                "description": ""
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_AirToAirHeatRecoveryTypeCommon.xml"
    },
    "Pset_AnalogInput": {
        "properties": {
            "Deadband": {
                "description": "The deadband value for the analog input."
            },
            "EventEnable": {
                "description": "Enumeration that defines the type of event enabling"
            },
            "HighLimit": {
                "description": "The high limit value for the analog input."
            },
            "HighLimitEnable": {
                "description": "Is high limit validation enabled (TRUE) or not (FALSE)."
            },
            "LowLimit": {
                "description": "The low limit value for the analog input."
            },
            "LowLimitEnable": {
                "description": "Is low limit validation enabled (TRUE) or not (FALSE)."
            },
            "NotifyType": {
                "description": "Enumeration that defines the notification type"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcBuildingControlsDomain/Pset_AnalogInput.xml"
    },
    "Pset_AnalogOutput": {
        "properties": {
            "Deadband": {
                "description": "The deadband value for the analog output."
            },
            "EventEnable": {
                "description": "Enumeration that defines the type of event enabling"
            },
            "HighLimit": {
                "description": "The high limit value for the analog output."
            },
            "HighLimitEnable": {
                "description": "Is high limit validation enabled (TRUE) or not (FALSE)."
            },
            "LowLimit": {
                "description": "The low limit value for the analog output."
            },
            "LowLimitEnable": {
                "description": "Is low limit validation enabled (TRUE) or not (FALSE)."
            },
            "NotifyType": {
                "description": "Enumeration that defines the notification type"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcBuildingControlsDomain/Pset_AnalogOutput.xml"
    },
    "Pset_Asset": {
        "properties": {
            "AssetAccountingType": {
                "description": "Identifies the predefined types of risk from which the type required may be set."
            },
            "AssetInsuranceType": {
                "description": "Identifies the predefined types of insurance rating from which the type required may be set."
            },
            "AssetTaxType": {
                "description": "Identifies the predefined types of taxation group from which the type required may be set."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedFacilitiesElements/Pset_Asset.xml"
    },
    "Pset_BeamCommon": {
        "properties": {
            "FireRating": {
                "description": "Fire rating for this object. It is given according to the national fire safety classification."
            },
            "IsExternal": {
                "description": "Indication whether the element is designed for use in the exterior (TRUE) or not (FALSE). If (TRUE) it is an external element and faces the outside of the building."
            },
            "LoadBearing": {
                "description": "Indicates whether the object is intended to carry loads (TRUE) or not (FALSE)."
            },
            "Reference": {
                "description": "Reference ID for this specified type in this project (e.g. type 'A-1')"
            },
            "Slope": {
                "description": "Slope angle - relative to horizontal (0.0 degrees). The shape information is provided in addition to the shape representation and the geometric parameters used within. In cases of inconsistency between the geometric parameters and the shape properties, provided in the attached property, the geometric parameters take precedence."
            },
            "Span": {
                "description": "Clear span for this object. The shape information is provided in addition to the shape representation and the geometric parameters used within. In cases of inconsistency between the geometric parameters and the shape properties, provided in the attached property, the geometric parameters take precedence."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgElements/Pset_BeamCommon.xml"
    },
    "Pset_BinaryInput": {
        "properties": {
            "AckedTransitions": {
                "description": "Enumeration that defines the type of transition acknowledgement"
            },
            "ActiveText": {
                "description": "String value to be displayed in an active, on, or running state"
            },
            "EventEnable": {
                "description": "Enumeration that defines the type of event enabling"
            },
            "FeedbackValue": {
                "description": "Enumeration defining the feedback value from the control system element"
            },
            "InactiveText": {
                "description": "String value to be displayed in an inactive, off, or idle state"
            },
            "MinimumOffTime": {
                "description": "Minimum off time"
            },
            "MinimumOnTime": {
                "description": "Minimum on time"
            },
            "Polarity": {
                "description": "Enumeration defining the polarity"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcBuildingControlsDomain/Pset_BinaryInput.xml"
    },
    "Pset_BinaryOutput": {
        "properties": {
            "AckedTransitions": {
                "description": "Enumeration that defines the type of transition acknowledgement"
            },
            "ActiveText": {
                "description": "String value to be displayed in an active, on, or running state"
            },
            "AlarmValue": {
                "description": "Enumeration defining the operating state of the control system element"
            },
            "EventEnable": {
                "description": "Enumeration that defines the type of event enabling"
            },
            "InactiveText": {
                "description": "String value to be displayed in an inactive, off, or idle state"
            },
            "Polarity": {
                "description": "Enumeration defining the polarity"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcBuildingControlsDomain/Pset_BinaryOutput.xml"
    },
    "Pset_BoilerPHistory": {
        "properties": {
            "AuxiliaryEnergyConsumption": {
                "description": "Boiler secondary energy source consumption (i.e., the electricity consumed by electrical devices such as fans and pumps)."
            },
            "CombustionEfficiency": {
                "description": "Combustion efficiency under nominal condition"
            },
            "CombustionTemperature": {
                "description": "Average combustion chamber temperature."
            },
            "EnergySourceConsumption": {
                "description": "Energy consumption."
            },
            "Load": {
                "description": "Boiler real load"
            },
            "OperationalEfficiency": {
                "description": "Operational efficiency: boiler output divided by total energy input (electrical and fuel)"
            },
            "PartLoadRatio": {
                "description": "Ratio of the real to the nominal capacity."
            },
            "PrimaryEnergyConsumption": {
                "description": "Boiler primary energy source consumption (i.e., the fuel consumed for changing the thermodynamic state of the fluid)."
            },
            "WorkingPressure": {
                "description": "Boiler working pressure"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_BoilerPHistory.xml"
    },
    "Pset_BoilerTypeCommon": {
        "properties": {
            "HeatOutput": {
                "description": "Total nominal heat output as listed by the Boiler manufacturer. For water boilers, it is a function of inlet versus outlet temperature. For steam boilers, it is a function of inlet temperature versus steam pressure."
            },
            "HeatTransferSurfaceArea": {
                "description": "Total heat transfer area of the vessel."
            },
            "IsWaterStorageHeater": {
                "description": "This is used to identify if the boiler has storage capacity (TRUE). If FALSE, then there is no storage capacity built into the boiler, such as an instantaneous hot water heater."
            },
            "Material": {
                "description": "The primary material used to construct the boiler's heat transfer vessel."
            },
            "NominalEfficiency": {
                "description": "The nominal efficiency of the boiler as defined by the manufacturer. For water boilers, a function of inlet versus outlet temperature. For steam boilers, a function of inlet temperature versus steam pressure."
            },
            "NominalEnergyConsumption": {
                "description": "Nominal fuel consumption rate required to produce the total boiler heat output."
            },
            "NominalPartLoadRatio": {
                "description": "Allowable part load ratio range."
            },
            "OperatingMode": {
                "description": "Identifies the operating mode of the boiler."
            },
            "OutletTemperatureRange": {
                "description": "Allowable outlet temperature of either the water or the steam."
            },
            "PartialLoadEfficiencyCurves": {
                "description": "Boiler efficiency as a function of the partial load factor; E = f (partialLaodfactor)."
            },
            "PressureRating": {
                "description": "Nominal pressure rating of the boiler as rated by ASME Boiler and Pressure Vessel Code Section IV, Rules for Construction of Heating Boilers, and Section I, Rules for Construction of Power Boilers"
            },
            "WaterInletTemperatureRange": {
                "description": "Allowable water inlet temperature range."
            },
            "WaterStorageCapacity": {
                "description": "Water storage capacity."
            },
            "Weight": {
                "description": "Weight of the boiler."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_BoilerTypeCommon.xml"
    },
    "Pset_BoilerTypeSteam": {
        "properties": {
            "MaximumOutletPressure": {
                "description": "Maximum steam outlet pressure."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_BoilerTypeSteam.xml"
    },
    "Pset_BuildingCommon": {
        "properties": {
            "AncillaryFireUse": {
                "description": "Ancillary fire use for the building which is assigned from the fire use classification table as given by the relevant national building code."
            },
            "BuildingID": {
                "description": "A unique identifier assigned to a building. A temporary identifier is initially assigned at the time of making a planning application. This temporary identifier is changed to a permanent identifier when the building is registered into a statutory buildings and properties database."
            },
            "GrossPlannedArea": {
                "description": "Total planned area for the building  Used for programming the building."
            },
            "IsLandmarked": {
                "description": "This builing is listed as a historic building (TRUE), or not (FALSE), or unknown."
            },
            "IsPermanentID": {
                "description": "Indicates whether the identity assigned to a building is permanent (= TRUE) or temporary (=FALSE)"
            },
            "MainFireUse": {
                "description": "Main fire use for the building which is assigned from the fire use classification table as given by the relevant national building code."
            },
            "NumberOfStoreys": {
                "description": "Captures the number of storeys within a building for those cases where the IfcBuildingStorey entity is not used. Note that if IfcBuilingStorey is asserted and the number of storeys in a building can be determined from it, then this approach should be used in preference to setting a property for the number of storeys."
            },
            "OccupancyType": {
                "description": "Occupancy type for this object. It is defined according to the presiding national building code."
            },
            "SprinklerProtection": {
                "description": "Indication whether this object is sprinkler protected (TRUE) or not (FALSE)."
            },
            "SprinklerProtectionAutomatic": {
                "description": "Indication whether this object has an automatic sprinkler protection (TRUE) or not (FALSE). It should only be given, if the property \"SprinklerProtection\" is set to TRUE."
            },
            "YearOfConstruction": {
                "description": "Year of construction of this building, including expected year of completion."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcProductExtension/Pset_BuildingCommon.xml"
    },
    "Pset_BuildingElementProxyCommon": {
        "properties": {
            "Reference": {
                "description": "Reference ID for this specified type in this project (e.g. type 'A-1')"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcProductExtension/Pset_BuildingElementProxyCommon.xml"
    },
    "Pset_BuildingStoreyCommon": {
        "properties": {
            "AboveGround": {
                "description": "Indication whether this building storey is fully above ground (TRUE), or below ground (FALSE), or partially above and below ground (UNKNOWN) - as in sloped terrain."
            },
            "EntranceLevel": {
                "description": "Indication whether this building storey is an entrance level to the building (TRUE), or (FALSE) if otherwise."
            },
            "GrossAreaPlanned": {
                "description": "Total planned area for the building storey. Used for programming the building storey."
            },
            "NetAreaPlanned": {
                "description": "Total planned net area for the building storey. Used for programming the building storey."
            },
            "SprinklerProtection": {
                "description": "Indication whether this object is sprinkler protected (true) or not (false)."
            },
            "SprinklerProtectionAutomatic": {
                "description": "Indication whether this object has an automatic sprinkler protection (true) or not (false). It should only be given, if the property \"SprinklerProtection\" is set to TRUE."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcProductExtension/Pset_BuildingStoreyCommon.xml"
    },
    "Pset_BuildingUse": {
        "properties": {
            "MarketCategory": {
                "description": "Category of use e.g. residential, commercial, recreation etc."
            },
            "MarketSubCategoriesAvailableFuture": {
                "description": "A list of the sub categories of property that are expected to be available in the future expressed in terms of IfcLabel"
            },
            "MarketSubCategoriesAvailableNow": {
                "description": "A list of the sub categories of property that are currently available expressed in terms of IfcLabel"
            },
            "MarketSubCategory": {
                "description": "Subset of category of use e.g. multi-family, 2 bedroom, low rise"
            },
            "NarrativeText": {
                "description": "Added information relating to the adjacent building use that is not appropriate to the general descriptive text associated with an entity through the inherited IfcRoot.Description"
            },
            "PlanningControlStatus": {
                "description": "Label of zoning category or class, or planning control category for the site or facility."
            },
            "RentalRatesInCategoryFuture": {
                "description": "Range of the cost rates for property expected to be available in the future in the required category."
            },
            "RentalRatesInCategoryNow": {
                "description": "Range of the cost rates for property currently available in the required category."
            },
            "TenureModesAvailableFuture": {
                "description": "A list of the tenure modes that are expected to be available in the future expressed in terms of IfcLabel"
            },
            "TenureModesAvailableNow": {
                "description": "A list of the tenure modes that are currently available expressed in terms of IfcLabel"
            },
            "VacancyRateInCategoryFuture": {
                "description": "Percentage of vacancy found in the particular category expected in the future"
            },
            "VacancyRateInCategoryNow": {
                "description": "Percentage of vacancy found in the particular category currently"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcProductExtension/Pset_BuildingUse.xml"
    },
    "Pset_BuildingUseAdjacent": {
        "properties": {
            "MarketCategory": {
                "description": "Category of use e.g. residential, commercial, recreation etc."
            },
            "MarketSubCategory": {
                "description": "Subset of category of use e.g. multi-family, 2 bedroom, low rise"
            },
            "NarrativeText": {
                "description": "Added information relating to the adjacent building use that is not appropriate to the general descriptive text associated with an entity through the inherited IfcRoot.Description"
            },
            "PlanningControlStatus": {
                "description": "Label of zoning category or class, or planning control category for the site or facility."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcProductExtension/Pset_BuildingUseAdjacent.xml"
    },
    "Pset_BuildingWaterStorage": {
        "properties": {
            "OneDayCoolingTowerMakeupWater": {
                "description": "The volume of water that needs to be stored to supply make up water to the cooling towers in a building for one day in the event of water supply failure."
            },
            "OneDayEssentialWater": {
                "description": "The volume of water that needs to be stored to supply water to the building for uninterrupted water supply to essential areas for one day in the event of water supply failure. An essential area is considered to be a part of a building carrying out a critical function and that is unable to operate in the intended manner without a water supply."
            },
            "OneDayPotableWater": {
                "description": "The volume of water that needs to be stored to supply water to the building for human use for one day in the event of water supply failure."
            },
            "OneDayProcessOrProductionWater": {
                "description": "The volume of water that needs to be stored to supply water for process or production requirements in a building for one day in the event of water supply failure."
            },
            "WaterStorageRatePerPerson": {
                "description": "The volume of domestic water that needs to be stored per person."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcProductExtension/Pset_BuildingWaterStorage.xml"
    },
    "Pset_CableCarrierSegmentTypeCableLadderSegment": {
        "properties": {
            "LadderConfiguration": {
                "description": "Description of the configuration of the ladder structure used."
            },
            "NominalHeight": {
                "description": "The nominal height of the segment"
            },
            "NominalLength": {
                "description": "The nominal length of the segment."
            },
            "NominalWidth": {
                "description": "The nominal width of the segment"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcElectricalDomain/Pset_CableCarrierSegmentTypeCableLadderSegment.xml"
    },
    "Pset_CableCarrierSegmentTypeCableTraySegment": {
        "properties": {
            "HasCover": {
                "description": "Indication of whether the cable tray has a cover (=TRUE) or not (= FALSE). By default, this value should be set to FALSE."
            },
            "NominalHeight": {
                "description": "The nominal height of the segment"
            },
            "NominalLength": {
                "description": "The nominal length of the segment."
            },
            "NominalWidth": {
                "description": "The nominal width of the segment"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcElectricalDomain/Pset_CableCarrierSegmentTypeCableTraySegment.xml"
    },
    "Pset_CableCarrierSegmentTypeCableTrunkingSegment": {
        "properties": {
            "NominalHeight": {
                "description": "The nominal height of the segment"
            },
            "NominalLength": {
                "description": "The nominal length of the segment."
            },
            "NominalWidth": {
                "description": "The nominal width of the segment"
            },
            "NumberOfCompartments": {
                "description": "The number of separate internal compartments within the trunking"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcElectricalDomain/Pset_CableCarrierSegmentTypeCableTrunkingSegment.xml"
    },
    "Pset_CableCarrierSegmentTypeConduitSegment": {
        "properties": {
            "ConduitShapeType": {
                "description": "The shape of the conduit segment"
            },
            "IsRigid": {
                "description": "Indication of whether the conduit is rigid (= TRUE) or flexible (= FALSE)"
            },
            "NominalHeight": {
                "description": "The nominal height of the segment"
            },
            "NominalLength": {
                "description": "The nominal length of the segment."
            },
            "NominalWidth": {
                "description": "The nominal width of the segment"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcElectricalDomain/Pset_CableCarrierSegmentTypeConduitSegment.xml"
    },
    "Pset_CableSegmentTypeCableSegment": {
        "properties": {
            "CableInsulationMaterial": {
                "description": "The material from which the insulation is constructed. Such as PVC, PEX, EPR,..."
            },
            "CrossSectionalArea": {
                "description": "Cross section area of the cable"
            },
            "MaxOperatingTemperature": {
                "description": "Maximum operating temperature for the cable."
            },
            "NominalHeight": {
                "description": "The nominal height of a cable, busbar or tube or, in the case of a circular cross section, the height is not asserted. Note that this value may be used for larger sized cables whose dimensions are explicitly given."
            },
            "NominalLength": {
                "description": "The nominal length of a cable, busbar or tube."
            },
            "NominalWidthOrDiameter": {
                "description": "The nominal width of a cable, busbar or tube or, in the case of a circular cross section, the diameter. Note that this value may be used for larger sized cables whose dimensions are explicitly given."
            },
            "NormalOperatingTemperature": {
                "description": "Normal operating temperature for the cable, busbar."
            },
            "SheathColor": {
                "description": "Colour code on cable, conductor."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcElectricalDomain/Pset_CableSegmentTypeCableSegment.xml"
    },
    "Pset_CableSegmentTypeConductorSegment": {
        "properties": {
            "ConductorMaterial": {
                "description": "Type of material from which the conductor is constructed. Such as Aluminium or Copper"
            },
            "ConductorSheathMaterial": {
                "description": "The material from which the sheath or insulation is constructed. Such as EPR, Copper, MICC, PVC, PEX, Rubber, XPLE, XPLE_LS. Note that materials used should be agreed between exchange participants before use."
            },
            "CrossSectionalArea": {
                "description": "Cross section area of the phase(s) lead(s)"
            },
            "ElectricalConductorFunction": {
                "description": "Type of function for which the conductor is intended."
            },
            "IsFireResistant": {
                "description": "Indication of whether the sheath is fire resistant (= TRUE) or not (= FALSE)."
            },
            "MaximumOperatingTemperature": {
                "description": "The maximum temperature at which the sheath retains its integrity."
            },
            "NominalLength": {
                "description": "The nominal length of a conductor."
            },
            "PhaseReference": {
                "description": "The phase identification used when the function of the conductor is a phase. In general, it is recommended that IEC recommendations for phase identification are used (L1, L2 etc.). However, other phase identifiers may be used such as by color (Red, Blue, Yellow) or by number (1, 2, 3) etc."
            },
            "SheathColor": {
                "description": "Colour code on cable, conductor."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcElectricalDomain/Pset_CableSegmentTypeConductorSegment.xml"
    },
    "Pset_ChillerPHistory": {
        "properties": {
            "Capacity": {
                "description": "The product of the  ideal capacity and the overall volumetric efficiency of the compressor."
            },
            "CapacityCurve": {
                "description": "Chiller cooling capacity is a function of condensing temperature and evaporating temperature, data is in table form, Capacity = f (TempCon, TempEvp), capacity = a1+b1*Tei+c1*Tei\\^2+d1*Tci+e1*Tci\\^2+f1*Tei*Tci."
            },
            "CoefficientOfPerformance": {
                "description": "Coefficient of performance (COP)."
            },
            "CoefficientOfPerformanceCurve": {
                "description": "Chiller coefficient of performance (COP) is function of condensing temperature and evaporating temperature, data is in table form,  COP= f (TempCon, TempEvp),  COP = a2+b2*Tei+c2*Tei\\^2+d2*Tci+e2*Tci\\^2+f2*Tei*Tci"
            },
            "EnergyEfficiencyRatio": {
                "description": "Energy efficiency ratio (EER)."
            },
            "FullLoadRatioCurve": {
                "description": "Ratio of actual power to full load power as a quadratic function of part load, at certain condensing and evaporating temperature, FracFullLoadPower = f ( PartLoadRatio)."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_ChillerPHistory.xml"
    },
    "Pset_ChillerTypeCommon": {
        "properties": {
            "NominalCapacity": {
                "description": "Nominal cooling capacity of chiller at standardized conditions per ARI Standards 550-92, Centrifugal and Rotary Screw Water-Chilling Packages, and ARI Standards 590-92, Positive Displacement Compressor."
            },
            "NominalCondensingTemperature": {
                "description": "Chiller condensing temperature."
            },
            "NominalEfficiency": {
                "description": "Nominal chiller efficiency under nominal conditions."
            },
            "NominalEvaporatingTemperature": {
                "description": "Chiller evaporating temperature."
            },
            "NominalHeatRejectionRate": {
                "description": "Sum of the refrigeration effect and the heat equivalent of the power input to the compressor."
            },
            "NominalPowerConsumption": {
                "description": "Nominal total power consumption."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_ChillerTypeCommon.xml"
    },
    "Pset_CoilPHistory": {
        "properties": {
            "AirPressureDropCurve": {
                "description": "Air pressure drop curve, pressure drop \u2013 flow rate curve, AirPressureDrop = f (AirflowRate)."
            },
            "AtmosphericPressure": {
                "description": "Ambient atmospheric pressure."
            },
            "FaceVelocity": {
                "description": "Air velocity through the coil."
            },
            "SoundCurve": {
                "description": "Regenerated sound versus air-flow rate."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_CoilPHistory.xml"
    },
    "Pset_CoilTypeCommon": {
        "properties": {
            "AirflowRateRange": {
                "description": "Possible range of airflow that can be delivered."
            },
            "NominalLatentCapacity": {
                "description": "Nominal latent capacity."
            },
            "NominalSensibleCapacity": {
                "description": "Nominal sensible capacity."
            },
            "NominalUA": {
                "description": "Nominal UA value."
            },
            "OperationalTemperatureRange": {
                "description": "Allowable operational air temperature range."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_CoilTypeCommon.xml"
    },
    "Pset_CoilTypeHydronic": {
        "properties": {
            "BypassFactor": {
                "description": "Fraction of air that is bypassed by the coil (0-1)."
            },
            "CoilConnectionDirection": {
                "description": "Coil connection direction (facing into the air stream)."
            },
            "CoilCoolant": {
                "description": "The fluid used for heating or cooling used by the hydronic coil."
            },
            "CoilFaceArea": {
                "description": "Coil face area in the direction against air the flow."
            },
            "CoilFluidArrangement": {
                "description": "Fluid flow arrangement of the coil. CrossCounterFlow: Air and water flow enter in different directions. CrossFlow: Air and water flow are perpendicular. CrossParallelFlow: Air and water flow enter in same directions"
            },
            "Fluid": {
                "description": "The properties of the hydronic fluid used for heat transfer within the coil tubes."
            },
            "FluidPressureRange": {
                "description": "Allowable water working pressure range inside the tube"
            },
            "HeatExchangeSurfaceArea": {
                "description": "Heat exchange surface area associated with U-value."
            },
            "PrimarySurfaceArea": {
                "description": "Primary heat transfer surface area of the tubes and headers."
            },
            "SecondarySurfaceArea": {
                "description": "Secondary heat transfer surface area created by fins."
            },
            "SensibleHeatRatio": {
                "description": "Air-side sensible heat ratio, or fraction of sensible heat transfer to the total heat transfer."
            },
            "TotalUACurves": {
                "description": "Total UA curves, UA - air and water velocities, UA = [(C1 * AirFlowRate\\^0.8)\\^-1 + (C2 * WaterFlowRate\\^0.8)\\^-1]\\^-1."
            },
            "WaterPressureDropCurve": {
                "description": "Water pressure drop curve, pressure drop \u2013 flow rate curve, WaterPressureDrop = f(WaterflowRate)."
            },
            "WetCoilFraction": {
                "description": "Fraction of coil surface area that is wet (0-1)."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_CoilTypeHydronic.xml"
    },
    "Pset_ColumnCommon": {
        "properties": {
            "FireRating": {
                "description": "Fire rating for this object. It is given according to the national fire safety classification."
            },
            "IsExternal": {
                "description": "Indication whether the element is designed for use in the exterior (TRUE) or not (FALSE). If (TRUE) it is an external element and faces the outside of the building."
            },
            "LoadBearing": {
                "description": "Indicates whether the object is intended to carry loads (TRUE) or not (FALSE)."
            },
            "Reference": {
                "description": "Reference ID for this specified type in this project (e.g. type 'A-1')"
            },
            "Slope": {
                "description": "Slope angle - relative to horizontal (0.0 degrees). The shape information is provided in addition to the shape representation and the geometric parameters used within. In cases of inconsistency between the geometric parameters and the shape properties, provided in the attached property, the geometric parameters take precedence."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgElements/Pset_ColumnCommon.xml"
    },
    "Pset_CompressorPHistory": {
        "properties": {
            "CoefficientOfPerformance": {
                "description": "Coefficient of performance (COP)."
            },
            "CompressionEfficiency": {
                "description": "Ratio of the work required for isentropic compression of the gas to the work delivered to the gas within the compression volume (as obtained by measurement)."
            },
            "CompressorCapacity": {
                "description": "The product of the  ideal capacity and the overall volumetric efficiency of the compressor."
            },
            "CompressorTotalEfficiency": {
                "description": "Ratio of the thermal cooling capacity to electrical input."
            },
            "CompressorTotalHeatGain": {
                "description": "Compressor total heat gain."
            },
            "EnergyEfficiencyRatio": {
                "description": "Energy efficiency ratio (EER)."
            },
            "FrictionHeatGain": {
                "description": "Friction heat gain."
            },
            "FullLoadRatioCurve": {
                "description": "Ratio of actual power to full load power as a quadratic function of part load, at certain condensing and evaporating temperature, FracFullLoadPower = f ( PartLoadRatio)."
            },
            "InputPower": {
                "description": "Input power to the compressor motor."
            },
            "IsentropicEfficiency": {
                "description": "Ratio of the work required for isentropic compression of the gas to work input to the compressor shaft."
            },
            "LubricantPumpHeatGain": {
                "description": "Lubricant pump heat gain."
            },
            "MechanicalEfficiency": {
                "description": "Ratio of the work (as measured) delivered to the gas to the work input to the compressor shaft."
            },
            "ShaftPower": {
                "description": "The actual shaft power input to the compressor."
            },
            "VolumetricEfficiency": {
                "description": "Ratio of the actual volume of gas entering the compressor to the theoretical displacement of the compressor."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_CompressorPHistory.xml"
    },
    "Pset_CompressorTypeCommon": {
        "properties": {
            "CompressorSpeed": {
                "description": "Compressor speed"
            },
            "HasHotGasBypass": {
                "description": "Whether or not hot gas bypass is provided for the compressor. TRUE = Yes, FALSE = No."
            },
            "IdealCapacity": {
                "description": "Compressor capacity under ideal conditions."
            },
            "IdealShaftPower": {
                "description": "Compressor shaft power under ideal conditions."
            },
            "MaximumPartLoadRatio": {
                "description": "Maximum part load ratio as a fraction of nominal capacity."
            },
            "MinimumPartLoadRatio": {
                "description": "Minimum part load ratio as a fraction of nominal capacity."
            },
            "NominalCapacity": {
                "description": "Compressor nameplate capacity."
            },
            "PowerSource": {
                "description": "Type of power driving the compressor"
            },
            "RefrigerantClass": {
                "description": "Refrigerant class used by the compressor. CFC: Chlorofluorocarbons. HCFC: Hydrochlorofluorocarbons. HFC: Hydrofluorocarbons."
            },
            "RefrigerantType": {
                "description": "Refrigerant material."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_CompressorTypeCommon.xml"
    },
    "Pset_CondenserPHistory": {
        "properties": {
            "CompressorCondenserHeatGain": {
                "description": "Heat gain between condenser inlet to compressor outlet."
            },
            "CompressorCondenserPressureDrop": {
                "description": "Pressure drop between condenser inlet and compressor outlet."
            },
            "CondenserMeanVoidFraction": {
                "description": "Mean void fraction in condenser."
            },
            "CondensingTemperature": {
                "description": "Refrigerant condensing temperature."
            },
            "ExteriorHeatTransferCoefficient": {
                "description": "Exterior heat transfer coefficient associated with exterior surface area."
            },
            "HeatRejectionRate": {
                "description": "Sum of the refrigeration effect and the heat equivalent of the power input to the compressor."
            },
            "InteriorHeatTransferCoefficient": {
                "description": "Interior heat transfer coefficient associated with interior surface area."
            },
            "LogarithmicMeanTemperatureDifference": {
                "description": "Logarithmic mean temperature difference between refrigerant and water or air."
            },
            "RefrigerantFoulingResistance": {
                "description": "Fouling resistance on the refrigerant side."
            },
            "UAcurves": {
                "description": "UV = f (VExterior, VInterior), UV as a function of interior and exterior fluid flow velocity at the entrance."
            },
            "WaterFoulingResistance": {
                "description": "Fouling resistance on water/air side."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_CondenserPHistory.xml"
    },
    "Pset_CondenserTypeCommon": {
        "properties": {
            "ExternalSurfaceArea": {
                "description": "External surface area (both primary and secondary area)."
            },
            "InternalRefrigerantVolume": {
                "description": "Internal volume of condenser (refrigerant side)."
            },
            "InternalSurfaceArea": {
                "description": "Internal surface area."
            },
            "InternalWaterVolume": {
                "description": "Internal volume of condenser (water side)."
            },
            "NominalHeatTransferArea": {
                "description": "Nominal heat transfer surface area associated with nominal overall heat transfer coefficient."
            },
            "NominalHeatTransferCoefficient": {
                "description": "Nominal overall heat transfer coefficient associated with nominal heat transfer area."
            },
            "RefrigerantClass": {
                "description": "Refrigerant class used by the condenser. CFC: Chlorofluorocarbons. HCFC: Hydrochlorofluorocarbons. HFC: Hydrofluorocarbons."
            },
            "RefrigerantType": {
                "description": "Refrigerant material."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_CondenserTypeCommon.xml"
    },
    "Pset_ControllerTypeCommon": {
        "properties": {
            "ControlType": {
                "description": "The type of signal modification effected"
            },
            "SignalFactor": {
                "description": "Factor multiplied onto offset signal"
            },
            "SignalOffset": {
                "description": "Offset constant added to modfied signal"
            },
            "SignalTime": {
                "description": "Time factor used for integral and running average controllers"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcBuildingControlsDomain/Pset_ControllerTypeCommon.xml"
    },
    "Pset_ControllerTypeProportional": {
        "properties": {
            "ControlType": {
                "description": "The type of signal modification effected"
            },
            "SignalFactor1": {
                "description": "Factor (Kp)"
            },
            "SignalFactor2": {
                "description": "Factor (Ki)"
            },
            "SignalTime1": {
                "description": "Time factor used for exponential increase."
            },
            "SignalTime2": {
                "description": "Time factor used for exponential decrease."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcBuildingControlsDomain/Pset_ControllerTypeProportional.xml"
    },
    "Pset_ControllerTypeTwoPosition": {
        "properties": {
            "BandWidth": {
                "description": "Dead band for controller"
            },
            "ControlType": {
                "description": "The type of signal modification effected"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcBuildingControlsDomain/Pset_ControllerTypeTwoPosition.xml"
    },
    "Pset_CooledBeamPHistory": {
        "properties": {
            "BeamCoolingCapacity": {
                "description": "Cooling capacity of beam. This excludes cooling capacity of supply air"
            },
            "BeamHeatingCapacity": {
                "description": "Heating capacity of beam. This excludes heating capacity of supply air"
            },
            "CoolingWaterFlowRate": {
                "description": "Water flow rate for cooling"
            },
            "CorrectionFactorForCooling": {
                "description": "Correction factor k as a function of water flow rate (used to calculate cooling capacity)"
            },
            "CorrectionFactorForHeating": {
                "description": "Correction factor k as a function of water flow rate (used to calculate heating capacity)"
            },
            "HeatingWaterFlowRate": {
                "description": "Water flow rate for heating"
            },
            "ReturnWaterTemperatureCooling": {
                "description": "Return water temperature in cooling mode"
            },
            "ReturnWaterTemperatureHeating": {
                "description": "Return water temperature in heating mode"
            },
            "SupplyWaterTemperatureCooling": {
                "description": "Supply water temperature in cooling mode"
            },
            "SupplyWaterTemperatureHeating": {
                "description": "Supply water temperature in heating mode"
            },
            "TotalCoolingCapacity": {
                "description": "Total cooling capacity. This includes cooling capacity of beam and cooling capacity of supply air"
            },
            "TotalHeatingCapacity": {
                "description": "Total heating capacity. This includes heating capacity of beam and heating capacity of supply air"
            },
            "WaterPressureDropCurves": {
                "description": "Water pressure drop as function of water flow rate"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_CooledBeamPHistory.xml"
    },
    "Pset_CooledBeamPHistoryActive": {
        "properties": {
            "AirFlowRate": {
                "description": "Air flow rate"
            },
            "AirPressureDropCurves": {
                "description": "Air pressure drop as function of air flow rate"
            },
            "Throw": {
                "description": "Distance cooled beam throws the air"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_CooledBeamPHistoryActive.xml"
    },
    "Pset_CooledBeamTypeActive": {
        "properties": {
            "AirFlowConfiguration": {
                "description": "Air flow configuration type of cooled beam"
            },
            "AirflowRateRange": {
                "description": "Possible range of airflow that can be delivered"
            },
            "ConnectionSize": {
                "description": "Duct connection diameter"
            },
            "SupplyAirConnectionType": {
                "description": "The manner in which the pipe connection is made to the cooled beam."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_CooledBeamTypeActive.xml"
    },
    "Pset_CooledBeamTypeCommon": {
        "properties": {
            "CoilLength": {
                "description": "Length of coil"
            },
            "CoilWidth": {
                "description": "Width of coil"
            },
            "ConnectionSize": {
                "description": "Pipe connection diameter"
            },
            "FinishColor": {
                "description": "Finish color for cooled beam"
            },
            "IntegratedLightingType": {
                "description": "Integrated lighting in cooled beam"
            },
            "IsFreeHanging": {
                "description": "Is it free hanging type (not mounted in a false ceiling)?"
            },
            "Material": {
                "description": "Primary construction material."
            },
            "NominalCoolingCapacity": {
                "description": "Nominal cooling capacity"
            },
            "NominalHeatingCapacity": {
                "description": "Nominal heating capacity"
            },
            "NominalReturnWaterTemperatureCooling": {
                "description": "Nominal return water temperature (refers to nominal cooling capacity)"
            },
            "NominalReturnWaterTemperatureHeating": {
                "description": "Nominal return water temperature (refers to nominal heating capacity)"
            },
            "NominalSupplyWaterTemperatureCooling": {
                "description": "Nominal supply water temperature (refers to nominal cooling capacity)"
            },
            "NominalSupplyWaterTemperatureHeating": {
                "description": "Nominal supply water temperature (refers to nominal heating capacity)"
            },
            "NominalSurroundingHumidityCooling": {
                "description": "Nominal surrounding humidity (refers to nominal cooling capacity)"
            },
            "NominalSurroundingTemperatureCooling": {
                "description": "Nominal surrounding temperature (refers to nominal cooling capacity)"
            },
            "NominalSurroundingTemperatureHeating": {
                "description": "Nominal surrounding temperature (refers to nominal heating capacity)"
            },
            "NominalWaterFlowCooling": {
                "description": "Nominal water flow (refers to nominal cooling capacity)"
            },
            "NominalWaterFlowHeating": {
                "description": "Nominal water flow (refers to nominal heating capacity)"
            },
            "PipeConnectionEnum": {
                "description": "The manner in which the pipe connection is made to the cooled beam."
            },
            "WaterFlowControlSystemType": {
                "description": "Factory fitted waterflow control system"
            },
            "WaterPressureRange": {
                "description": "Allowable water circuit working pressure range."
            },
            "Weight": {
                "description": "Weight of cooled beam"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_CooledBeamTypeCommon.xml"
    },
    "Pset_CoolingTowerPHistory": {
        "properties": {
            "Capacity": {
                "description": "Cooling tower capacity in terms of heat transfer rate of the cooling tower between air stream and water stream."
            },
            "HeatTransferCoefficient": {
                "description": "Heat transfer coefficient-area product."
            },
            "Performance": {
                "description": "Water temperature change as a function of wet-bulb temperature, water entering temperature, water flow rate, air flow rate, Tdiff = f ( Twet-bulb, Twater,in, mwater, mair)."
            },
            "SumpHeaterPower": {
                "description": "Electrical heat power of sump heater."
            },
            "UACurve": {
                "description": "UA value as a  function of fan speed at certain water flow rate, UA = f ( fan speed)."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_CoolingTowerPHistory.xml"
    },
    "Pset_CoolingTowerTypeCommon": {
        "properties": {
            "AmbientDesignDryBulbTemperature": {
                "description": "Ambient design dry bulb temperature used for selecting the cooling tower."
            },
            "AmbientDesignWetBulbTemperature": {
                "description": "Ambient design wet bulb temperature used for selecting the cooling tower."
            },
            "BasinReserveVolume": {
                "description": "Volume between operating and overflow levels in cooling tower basin."
            },
            "CapacityControl": {
                "description": "FanCycling: Fan is cycled on and off to control duty. TwoSpeedFan: Fan is switched between low and high speed to control duty. VariableSpeedFan: Fan speed is varied to control duty. DampersControl: Dampers modulate the air flow to control duty. BypassValveControl: Bypass valve modulates the water flow to control duty. MultipleSeriesPumps: Turn on/off multiple series pump to control duty. TwoSpeedPump: Switch between high/low pump speed to control duty. VariableSpeedPump: vary pump speed to control duty"
            },
            "CasingMaterial": {
                "description": "Casing Material."
            },
            "CircuitType": {
                "description": "OpenCircuit: Exposes water directly to the cooling atmosphere. CloseCircuit: The fluid is separated from the atmosphere by a heat exchanger. Wet: The air stream or the heat exchange surface is evaporatively cooled. Dry: No evaporation into the air stream. DryWet: A combination of a dry tower and a wet tower."
            },
            "ControlStrategy": {
                "description": "FixedExitingWaterTemp: The capacity is controlled to maintain a fixed exiting water temperature. WetBulbTempReset: The set-point is reset based on the wet-bulb temperature."
            },
            "FillMaterial": {
                "description": "Fill Material."
            },
            "FlowArrangement": {
                "description": "CounterFlow: Air and water flow enter in different directions. CrossFlow: Air and water flow are perpendicular. ParallelFlow: air and water flow enter in same directions."
            },
            "LiftElevationDifference": {
                "description": "Elevation difference between cooling tower sump and the top of the tower."
            },
            "NominalCapacity": {
                "description": "Nominal cooling tower capacity in terms of heat transfer rate of the cooling tower between air stream and water stream at nominal conditions."
            },
            "NumberOfCells": {
                "description": "Number of cells in one cooling tower unit."
            },
            "OperationTemperatureRange": {
                "description": "Allowable operation ambient air temperature range"
            },
            "SprayType": {
                "description": "SprayFilled: Water is sprayed into airflow. SplashTypeFill: water cascades over successive rows of splash bars. FilmTypeFill: water flows in a thin layer over closely spaced sheets."
            },
            "WaterRequirement": {
                "description": "Make-up water requirements."
            },
            "Weight": {
                "description": "Weight of cooling tower."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_CoolingTowerTypeCommon.xml"
    },
    "Pset_CoveringCeiling": {
        "properties": {
            "FragilityRating": {
                "description": "The level of fragility of the ceiling. It is giving according to the national building code."
            },
            "Permeability": {
                "description": "Ratio of the permeability of the ceiling. The ration can be used to indicate an open ceiling (that enables identification of whether ceiling construction should be considered as impeding distribution of sprinkler water, light etc. from installations within the ceiling area) ."
            },
            "TileLength": {
                "description": "Length of ceiling tiles. The size information is provided in addition to the shape representation and the geometric parameters used within. In cases of inconsistency between the geometric parameters and the size properties, provided in the attached property set, the geometric parameters take precedence."
            },
            "TileWidth": {
                "description": "Width of ceiling tiles. The size information is provided in addition to the shape representation and the geometric parameters used within. In cases of inconsistency between the geometric parameters and the size properties, provided in the attached property set, the geometric parameters take precedence."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcProductExtension/Pset_CoveringCeiling.xml"
    },
    "Pset_CoveringCommon": {
        "properties": {
            "AcousticRating": {
                "description": "Acoustic rating for this object. It is giving according to the national building code. It indicates the sound transmission resistance of this object by an index ration (instead of providing full sound absorbtion values)."
            },
            "Combustible": {
                "description": "Indication whether the object is made from combustible material (TRUE) or not (FALSE)."
            },
            "Finish": {
                "description": "Finish selection for this object. Here specification of the surface finish for informational purposes"
            },
            "FireRating": {
                "description": "Fire rating for this object. It is given according to the national fire safety classification."
            },
            "FlammabilityRating": {
                "description": "Flammability Rating for this object. It is given according to the national building code that governs the rating of flammability for materials."
            },
            "FragilityRating": {
                "description": "Indication on the fragility of the covering (e.g., under fire conditions).  It is given according to the national building code that might provide a classification for fragility."
            },
            "Material": {
                "description": "Main material of the covering, it should only be given, if no IfcMaterial class is assigned to the IfcCovering instance."
            },
            "Reference": {
                "description": "Reference ID for this specified type in this project (e.g. type 'A-1')"
            },
            "SurfaceSpreadOfFlame": {
                "description": "Indication on how the flames spread around the surface, It is given according to the national building code that governs the fire behaviour for materials."
            },
            "TotalThickness": {
                "description": "Thickness of the covering, The thickness information is provided in addition to the shape representation and the geometric parameters used within. In cases of inconsistency between the geometric parameters and the shape properties, provided in the attached property, the geometric parameters take precedence."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcProductExtension/Pset_CoveringCommon.xml"
    },
    "Pset_CoveringFlooring": {
        "properties": {
            "HasAntiStaticSurface": {
                "description": "Indication whether the surface finish is designed to prevent electrostatic charge (TRUE) or not (FALSE)."
            },
            "HasNonSkidSurface": {
                "description": "Indication whether the surface finish is designed to prevent slippery (TRUE) or not (FALSE)."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcProductExtension/Pset_CoveringFlooring.xml"
    },
    "Pset_CurtainWallCommon": {
        "properties": {
            "AcousticRating": {
                "description": "Acoustic rating for this object. It is giving according to the national building code. It indicates the sound transmission resistance of this object by an index ration (instead of providing full sound absorbtion values)."
            },
            "Combustible": {
                "description": "Indication whether the object is made from combustible material (TRUE) or not (FALSE)."
            },
            "FireRating": {
                "description": "Fire rating given according to the national fire safety classification."
            },
            "IsExternal": {
                "description": "Indication whether the element is designed for use in the exterior (TRUE) or not (FALSE). If (TRUE) it is an external element and faces the outside of the building."
            },
            "Reference": {
                "description": "Reference ID for this specified type in this project (e.g. type 'A-1')"
            },
            "SurfaceSpreadOfFlame": {
                "description": "Indication on how the flames spread around the surface, It is given according to the national building code that governs the fire behaviour for materials."
            },
            "ThermalTransmittance": {
                "description": "Thermal transmittance coefficient (U-Value) of a material. Here the total thermal transmittance coefficient through the wall (including all materials)."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgElements/Pset_CurtainWallCommon.xml"
    },
    "Pset_DamperPHistory": {
        "properties": {
            "AirFlowRate": {
                "description": "Air flow rate."
            },
            "BladePositionAngle": {
                "description": "Blade position angle; angle between the blade and flow direction ( 0 - 90)."
            },
            "DamperPosition": {
                "description": "Damper position (0-1); damper position ( 0=closed=90deg position angle, 1=open=0deg position angle."
            },
            "Leakage": {
                "description": "Air leakage rate."
            },
            "PressureDrop": {
                "description": "Pressure drop."
            },
            "PressureLossCoefficient": {
                "description": "Pressure loss coefficient."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_DamperPHistory.xml"
    },
    "Pset_DamperTypeCommon": {
        "properties": {
            "BladeAction": {
                "description": "Blade action."
            },
            "BladeEdge": {
                "description": "Blade edge."
            },
            "BladeMaterial": {
                "description": "The material from which the damper blades are constructed."
            },
            "BladeShape": {
                "description": "Blade shape. Flat means triple V-groove."
            },
            "BladeThickness": {
                "description": "The thickness of the damper blade."
            },
            "CloseOffRating": {
                "description": "Close off rating."
            },
            "FaceArea": {
                "description": "Face area open to the airstream."
            },
            "FrameDepth": {
                "description": "The length (or depth) of the damper frame."
            },
            "FrameMaterial": {
                "description": "The material from which the damper frame is constructed."
            },
            "FrameThickness": {
                "description": "The thickness of the damper frame material."
            },
            "FrameType": {
                "description": "The type of frame used by the damper (e.g., Standard, Single Flange, Single Reversed Flange, Double Flange, etc.)."
            },
            "LeakageCurve": {
                "description": "Leakage versus pressure drop; Leakage = f (pressure)."
            },
            "LeakageFullyClosed": {
                "description": "Leakage when fully closed."
            },
            "LossCoefficentCurve": {
                "description": "Loss coefficient \u2013 blade position angle curve; ratio of pressure drop to velocity pressure versus blade angle; C = f (blade angle position)."
            },
            "MaximumAirFlowRate": {
                "description": "Maximum allowable air flow rate."
            },
            "MaximumWorkingPressure": {
                "description": "Maximum working pressure."
            },
            "NominalAirFlowRate": {
                "description": "Nominal air flow rate."
            },
            "NumberofBlades": {
                "description": "Number of blades."
            },
            "OpenPressureDrop": {
                "description": "Total pressure drop across damper."
            },
            "Operation": {
                "description": "The operational mechanism for the damper operation."
            },
            "Orientation": {
                "description": "The intended orientation for the damper as specified by the manufacturer."
            },
            "RegeneratedSoundCurve": {
                "description": "Regenerated sound versus air flow rate."
            },
            "SealMaterial": {
                "description": "The material from which the damper seals are constructed."
            },
            "TemperatureRange": {
                "description": "Temperature range."
            },
            "TemperatureRating": {
                "description": "Temperature rating."
            },
            "TorqueRange": {
                "description": "Torque range."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_DamperTypeCommon.xml"
    },
    "Pset_DamperTypeControlDamper": {
        "properties": {
            "ControlDamperOperation": {
                "description": "The inherent characteristic of the control damper operation."
            },
            "TorqueRange": {
                "description": "Torque range: minimum operational torque to maximum allowable torque."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_DamperTypeControlDamper.xml"
    },
    "Pset_DamperTypeFireDamper": {
        "properties": {
            "ActuationType": {
                "description": "Enumeration that identifies the different types of dampers"
            },
            "ClosureRatingEnum": {
                "description": "Enumeration that identifies the closure rating for the damper"
            },
            "FireResistanceRating": {
                "description": "Measure of the fire resistance rating in hours (e.g., 1.5 hours, 2 hours, etc.)."
            },
            "FusibleLinkTemperature": {
                "description": "The temperature that the fusible link melts"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_DamperTypeFireDamper.xml"
    },
    "Pset_DamperTypeFireSmokeDamper": {
        "properties": {
            "ControlType": {
                "description": "The type of control used to operate the damper (e.g., Open/Closed Indicator, Resetable Temperature Sensor, Temperature Override, etc.)"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_DamperTypeFireSmokeDamper.xml"
    },
    "Pset_DamperTypeSmokeDamper": {
        "properties": {
            "ControlType": {
                "description": "The type of control used to operate the damper (e.g., Open/Closed Indicator, Resetable Temperature Sensor, Temperature Override, etc.)"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_DamperTypeSmokeDamper.xml"
    },
    "Pset_DesignPoint": {
        "properties": {
            "IsDesignPoint": {
                "description": "Indicates whether an instance of IfcDistributionPort is to act as the design point for sprinkler hydraulic calculation (set TRUE) or not (either set FALSE or assumed to be FALSE where an instance of the property set is not assigned to an instance of IfcDistributionPort)."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcPlumbingFireProtectionDomain/Pset_DesignPoint.xml"
    },
    "Pset_DiscreteAccessoryAnchorBolt": {
        "properties": {
            "AnchorBoltDiameter": {
                "description": "The nominal diameter of the anchor bolt bar(s)."
            },
            "AnchorBoltLength": {
                "description": "The length of the anchor bolt."
            },
            "AnchorBoltProtrusionLength": {
                "description": "The length of the protruding part of the anchor bolt."
            },
            "AnchorBoltThreadLength": {
                "description": "The length of the threaded part of the anchor bolt."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedComponentElements/Pset_DiscreteAccessoryAnchorBolt.xml"
    },
    "Pset_DiscreteAccessoryColumnShoe": {
        "properties": {
            "ColumnShoeBasePlateDepth": {
                "description": "The depth of the column shoe base plate."
            },
            "ColumnShoeBasePlateThickness": {
                "description": "The thickness of the column shoe base plate."
            },
            "ColumnShoeBasePlateWidth": {
                "description": "The width of the column shoe base plate."
            },
            "ColumnShoeCasingDepth": {
                "description": "The depth of the column shoe casing."
            },
            "ColumnShoeCasingHeight": {
                "description": "The height of the column shoe casing."
            },
            "ColumnShoeCasingWidth": {
                "description": "The width of the column shoe casing."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedComponentElements/Pset_DiscreteAccessoryColumnShoe.xml"
    },
    "Pset_DiscreteAccessoryCornerFixingPlate": {
        "properties": {
            "CornerFixingPlateFlangeWidthInPlaneX": {
                "description": "The flange width of the L-shaped corner plate in plane X."
            },
            "CornerFixingPlateFlangeWidthInPlaneZ": {
                "description": "The flange width of the L-shaped corner plate in plane Z."
            },
            "CornerFixingPlateLength": {
                "description": "The length of the L-shaped corner plate."
            },
            "CornerFixingPlateThickness": {
                "description": "The thickness of the L-shaped corner plate."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedComponentElements/Pset_DiscreteAccessoryCornerFixingPlate.xml"
    },
    "Pset_DiscreteAccessoryDiagonalTrussConnector": {
        "properties": {
            "DiagonalTrussBaseBarDiameter": {
                "description": "The nominal diameter of the base bar."
            },
            "DiagonalTrussCrossBarDiameter": {
                "description": "The nominal diameter of the diagonal cross-bars."
            },
            "DiagonalTrussCrossBarSpacing": {
                "description": "The spacing between diagonal cross-bar sections."
            },
            "DiagonalTrussHeight": {
                "description": "The overall height of the truss connector."
            },
            "DiagonalTrussLength": {
                "description": "The overall length of the truss connector."
            },
            "DiagonalTrussSecondaryBarDiameter": {
                "description": "The nominal diameter of the secondary bar."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedComponentElements/Pset_DiscreteAccessoryDiagonalTrussConnector.xml"
    },
    "Pset_DiscreteAccessoryEdgeFixingPlate": {
        "properties": {
            "EdgeFixingPlateFlangeWidthInPlaneX": {
                "description": "The flange width of the L-shaped edge plate in plane X."
            },
            "EdgeFixingPlateFlangeWidthInPlaneZ": {
                "description": "The flange width of the L-shaped edge plate in plane Z."
            },
            "EdgeFixingPlateLength": {
                "description": "The length of the L-shaped edge plate."
            },
            "EdgeFixingPlateThickness": {
                "description": "The thickness of the L-shaped edge plate."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedComponentElements/Pset_DiscreteAccessoryEdgeFixingPlate.xml"
    },
    "Pset_DiscreteAccessoryFixingSocket": {
        "properties": {
            "FixingSocketHeight": {
                "description": "The overall height of the fixing socket."
            },
            "FixingSocketThreadDiameter": {
                "description": "The nominal diameter of the thread."
            },
            "FixingSocketThreadLength": {
                "description": "The length of the threaded part of the fixing socket."
            },
            "FixingSocketTypeReference": {
                "description": "Type reference for the fixing socket according to local standards."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedComponentElements/Pset_DiscreteAccessoryFixingSocket.xml"
    },
    "Pset_DiscreteAccessoryLadderTrussConnector": {
        "properties": {
            "LadderTrussBaseBarDiameter": {
                "description": "The nominal diameter of the base bar."
            },
            "LadderTrussCrossBarDiameter": {
                "description": "The nominal diameter of the straight cross-bars."
            },
            "LadderTrussCrossBarSpacing": {
                "description": "The spacing between the straight cross-bars."
            },
            "LadderTrussHeight": {
                "description": "The overall height of the truss connector."
            },
            "LadderTrussLength": {
                "description": "The overall length of the truss connector."
            },
            "LadderTrussSecondaryBarDiameter": {
                "description": "The nominal diameter of the secondary bar."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedComponentElements/Pset_DiscreteAccessoryLadderTrussConnector.xml"
    },
    "Pset_DiscreteAccessoryStandardFixingPlate": {
        "properties": {
            "StandardFixingPlateDepth": {
                "description": "The depth of the standard fixing plate."
            },
            "StandardFixingPlateThickness": {
                "description": "The thickness of the standard fixing plate."
            },
            "StandardFixingPlateWidth": {
                "description": "The width of the standard fixing plate."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedComponentElements/Pset_DiscreteAccessoryStandardFixingPlate.xml"
    },
    "Pset_DiscreteAccessoryWireLoop": {
        "properties": {
            "WireDiameter": {
                "description": "The nominal diameter of the wire."
            },
            "WireEmbeddingLength": {
                "description": "The length of the part of wire which is embedded in the precast concrete element."
            },
            "WireLoopBasePlateLength": {
                "description": "The length of the base plate."
            },
            "WireLoopBasePlateThickness": {
                "description": "The thickness of the base plate."
            },
            "WireLoopBasePlateWidth": {
                "description": "The width of the base plate."
            },
            "WireLoopLength": {
                "description": "The length of the fastening loop part of the wire."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedComponentElements/Pset_DiscreteAccessoryWireLoop.xml"
    },
    "Pset_DistributionChamberElementTypeFormedDuct": {
        "properties": {
            "AccessCoverLoadRating": {
                "description": "The load rating of the access cover (which may be a value or an alphanumerically defined class rating)"
            },
            "AccessCoverMaterial": {
                "description": "The material from which the access cover to the chamber is constructed. NOTE: It is assumed that chamber walls will be constructed of a single material."
            },
            "BaseMaterial": {
                "description": "The material from which the base of the duct is constructed. NOTE: It is assumed that duct base will be constructed of a single material."
            },
            "BaseThickness": {
                "description": "The thickness of the duct base construction NOTE: It is assumed that duct base will be constructed at a single thickness."
            },
            "ClearDepth": {
                "description": "The depth of the formed space in the duct."
            },
            "ClearWidth": {
                "description": "The width of the formed space in the duct."
            },
            "FillMaterial": {
                "description": "The material that is used to fill the duct (where used)."
            },
            "WallMaterial": {
                "description": "The material from which the wall of the duct is constructed. NOTE: It is assumed that duct walls will be constructed of a single material."
            },
            "WallThickness": {
                "description": "The thickness of the duct wall construction NOTE: It is assumed that chamber walls will be constructed at a single thickness."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgServiceElements/Pset_DistributionChamberElementTypeFormedDuct.xml"
    },
    "Pset_DistributionChamberElementTypeInspectionChamber": {
        "properties": {
            "AccessCoverLoadRating": {
                "description": "The load rating of the access cover (which may be a value or an alphanumerically defined class rating)"
            },
            "AccessCoverMaterial": {
                "description": "The material from which the access cover to the chamber is constructed. NOTE: It is assumed that chamber walls will be constructed of a single material."
            },
            "AccessLengthOrRadius": {
                "description": "The length of the chamber access cover or, where the plan shape of the cover is circular, the radius."
            },
            "AccessWidth": {
                "description": "The width of the chamber access cover where the plan shape of the cover is not circular."
            },
            "BaseMaterial": {
                "description": "The material from which the base of the chamber is constructed. NOTE: It is assumed that chamber base will be constructed of a single material."
            },
            "BaseThickness": {
                "description": "The thickness of the chamber base construction NOTE: It is assumed that chamber base will be constructed at a single thickness."
            },
            "ChamberLengthOrRadius": {
                "description": "Length or, in the event of the shape being circular in plan, the radius of the chamber."
            },
            "ChamberWidth": {
                "description": "Width, in the event of the shape being non circular in plan."
            },
            "InvertLevel": {
                "description": "Level of the lowest part of the cross section. (BS6100 250 8001)"
            },
            "SoffitLevel": {
                "description": "Level of the highest internal part of the cross section. (BS6100 250 8002)"
            },
            "WallMaterial": {
                "description": "The material from which the wall of the chamber is constructed. NOTE: It is assumed that chamber walls will be constructed of a single material."
            },
            "WallThickness": {
                "description": "The thickness of the chamber wall construction NOTE: It is assumed that chamber walls will be constructed at a single thickness."
            },
            "WithBackdrop": {
                "description": "Indicates whether the chamber has a backdrop or tumbling bay (TRUE) or not (FALSE)."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgServiceElements/Pset_DistributionChamberElementTypeInspectionChamber.xml"
    },
    "Pset_DistributionChamberElementTypeInspectionPit": {
        "properties": {
            "Depth": {
                "description": "The depth of the pit."
            },
            "Length": {
                "description": "The length of the pit."
            },
            "Width": {
                "description": "The width of the pit."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgServiceElements/Pset_DistributionChamberElementTypeInspectionPit.xml"
    },
    "Pset_DistributionChamberElementTypeManhole": {
        "properties": {
            "AccessCoverLoadRating": {
                "description": "The load rating of the access cover (which may be a value or an alphanumerically defined class rating)"
            },
            "AccessCoverMaterial": {
                "description": "The material from which the access cover to the chamber is constructed. NOTE: It is assumed that chamber walls will be constructed of a single material."
            },
            "AccessLengthOrRadius": {
                "description": "The length of the chamber access cover or, where the plan shape of the cover is circular, the radius."
            },
            "AccessWidth": {
                "description": "The width of the chamber access cover where the plan shape of the cover is not circular."
            },
            "BaseMaterial": {
                "description": "The material from which the base of the chamber is constructed. NOTE: It is assumed that chamber base will be constructed of a single material."
            },
            "BaseThickness": {
                "description": "The thickness of the chamber base construction NOTE: It is assumed that chamber base will be constructed at a single thickness."
            },
            "HasSteps": {
                "description": "Indicates whether the chamber has steps (TRUE) or not (FALSE)."
            },
            "InvertLevel": {
                "description": "Level of the lowest part of the cross section. (BS6100 250 8001)"
            },
            "IsShallow": {
                "description": "Indicates whether the chamber has been designed as being shallow (TRUE) or deep (FALSE)."
            },
            "SoffitLevel": {
                "description": "Level of the highest internal part of the cross section. (BS6100 250 8002)"
            },
            "WallMaterial": {
                "description": "The material from which the wall of the chamber is constructed. NOTE: It is assumed that chamber walls will be constructed of a single material."
            },
            "WallThickness": {
                "description": "The thickness of the chamber wall construction NOTE: It is assumed that chamber walls will be constructed at a single thickness."
            },
            "WithBackdrop": {
                "description": "Indicates whether the chamber has a backdrop or tumbling bay (TRUE) or not (FALSE)."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgServiceElements/Pset_DistributionChamberElementTypeManhole.xml"
    },
    "Pset_DistributionChamberElementTypeMeterChamber": {
        "properties": {
            "AccessCoverMaterial": {
                "description": "The material from which the access cover to the chamber is constructed. NOTE: It is assumed that chamber walls will be constructed of a single material."
            },
            "BaseMaterial": {
                "description": "The material from which the base of the chamber is constructed. NOTE: It is assumed that chamber base will be constructed of a single material."
            },
            "BaseThickness": {
                "description": "The thickness of the chamber base construction NOTE: It is assumed that chamber base will be constructed at a single thickness."
            },
            "ChamberLengthOrRadius": {
                "description": "Length or, in the event of the shape being circular in plan, the radius of the chamber."
            },
            "ChamberWidth": {
                "description": "Width, in the event of the shape being non circular in plan."
            },
            "WallMaterial": {
                "description": "The material from which the wall of the chamber is constructed. NOTE: It is assumed that chamber walls will be constructed of a single material."
            },
            "WallThickness": {
                "description": "The thickness of the chamber wall construction NOTE: It is assumed that chamber walls will be constructed at a single thickness."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgServiceElements/Pset_DistributionChamberElementTypeMeterChamber.xml"
    },
    "Pset_DistributionChamberElementTypeSump": {
        "properties": {
            "InvertLevel": {
                "description": "The lowest point in the cross section of the sump."
            },
            "Length": {
                "description": "The length of the sump."
            },
            "Width": {
                "description": "The width of the sump."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgServiceElements/Pset_DistributionChamberElementTypeSump.xml"
    },
    "Pset_DistributionChamberElementTypeTrench": {
        "properties": {
            "Depth": {
                "description": "The depth of the trench."
            },
            "InvertLevel": {
                "description": "Level of the lowest part of the cross section. (BS6100 250 8001)"
            },
            "Width": {
                "description": "The width of the trench."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgServiceElements/Pset_DistributionChamberElementTypeTrench.xml"
    },
    "Pset_DistributionChamberElementTypeValveChamber": {
        "properties": {
            "AccessCoverMaterial": {
                "description": "The material from which the access cover to the chamber is constructed. NOTE: It is assumed that chamber walls will be constructed of a single material."
            },
            "BaseMaterial": {
                "description": "The material from which the base of the chamber is constructed. NOTE: It is assumed that chamber base will be constructed of a single material."
            },
            "BaseThickness": {
                "description": "The thickness of the chamber base construction NOTE: It is assumed that chamber base will be constructed at a single thickness."
            },
            "ChamberLengthOrRadius": {
                "description": "Length or, in the event of the shape being circular in plan, the radius of the chamber."
            },
            "ChamberWidth": {
                "description": "Width, in the event of the shape being non circular in plan."
            },
            "WallMaterial": {
                "description": "The material from which the wall of the chamber is constructed. NOTE: It is assumed that chamber walls will be constructed of a single material."
            },
            "WallThickness": {
                "description": "The thickness of the chamber wall construction NOTE: It is assumed that chamber walls will be constructed at a single thickness."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgServiceElements/Pset_DistributionChamberElementTypeValveChamber.xml"
    },
    "Pset_DistributionFlowElementCommon": {
        "properties": {
            "Reference": {
                "description": "Reference ID for this specific instance (e.g.  'WWS/VS1/400/001', which indicates the occurrence belongs to system WWS, subsystems VSI/400, and has the component number 001)"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgServiceElements/Pset_DistributionFlowElementCommon.xml"
    },
    "Pset_DistributionPortDuct": {
        "properties": {
            "ConnectionType": {
                "description": "The end-style treatment of the duct port: BEADEDSLEEVE: Beaded Sleeve.  COMPRESSION: Compression.  CRIMP: Crimp.  DRAWBAND: Drawband.  DRIVESLIP: Drive slip.  FLANGED: Flanged.  OUTSIDESLEEVE: Outside Sleeve.  SLIPON: Slipon.  SOLDERED: Soldered.  SSLIP: S-Slip.  STANDINGSEAM: Standing seam.  SWEDGE: Swedge.  WELDED: Welded.  OTHER: Another type of end-style has been applied. NONE: No end-style has been applied."
            },
            "PortNumber": {
                "description": "The index of the port as it relates to the related object. Each index must be unique for any given related object."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgServiceElements/Pset_DistributionPortDuct.xml"
    },
    "Pset_DistributionPortPipe": {
        "properties": {
            "ConnectionType": {
                "description": "The end-style treatment of the pipe port: BRAZED: Brazed.  COMPRESSION: Compression.  FLANGED: Flanged.  GROOVED: Grooved.  OUTSIDESLEEVE: Outside Sleeve.  SOLDERED: Soldered.  SWEDGE: Swedge.  THREADED: Threaded.  WELDED: Welded.  OTHER: Another type of end-style has been applied. NONE: No end-style has been applied. USERDEFINED: User-defined port connection type.  NOTDEFINED: Undefined port connection type."
            },
            "PortNumber": {
                "description": "The index of the port as it relates to the related object. Each index must be unique for any given related object."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgServiceElements/Pset_DistributionPortPipe.xml"
    },
    "Pset_DoorCommon": {
        "properties": {
            "AcousticRating": {
                "description": "Acoustic rating for this object. It is giving according to the national building code. It indicates the sound transmission resistance of this object by an index ration (instead of providing full sound absorbtion values)."
            },
            "FireExit": {
                "description": "Indication whether this object is designed to serve as an exit in the case of fire (TRUE) or not (FALSE). Here it defines an exit door in accordance to the national building code."
            },
            "FireRating": {
                "description": "Fire rating for this object. It is given according to the national fire safety classification."
            },
            "GlazingAreaFraction": {
                "description": "Fraction of the glazing area relative to the total area of the filling element.  It shall be used, if the glazing area is not given separately for all panels within the filling element."
            },
            "HandicapAccessible": {
                "description": "Indication that this object is designed to be accessible by the handicapped.  It is giving according to the requirements of the national building code."
            },
            "Infiltration": {
                "description": "Infiltration flowrate of outside air for the filler object based on the area of the filler object at a pressure level of 50 Pascals. It shall be used, if the length of all joints is unknown."
            },
            "IsExternal": {
                "description": "Indication whether the element is designed for use in the exterior (TRUE) or not (FALSE). If (TRUE) it is an external element and faces the outside of the building."
            },
            "Reference": {
                "description": "Reference ID for this specified type in this project (e.g. type 'A-1')"
            },
            "SecurityRating": {
                "description": "Index based rating system indicating security level. It is giving according to the national building code."
            },
            "SelfClosing": {
                "description": "Indication whether this object is designed to close automatically after use (TRUE) or not (FALSE)."
            },
            "SmokeStop": {
                "description": "Indication whether the object is designed to provide a smoke stop (TRUE) or not (FALSE)."
            },
            "ThermalTransmittance": {
                "description": "Thermal transmittance coefficient (U-Value) of a material. It applies to the total door construction."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgElements/Pset_DoorCommon.xml"
    },
    "Pset_DoorWindowGlazingType": {
        "properties": {
            "BeamRadiationTransmittance": {
                "description": "Direct solar radiation transmittance that passes the glazing at normal incidence. It is a value without unit, often referred to as (Tsol)."
            },
            "FillGas": {
                "description": "Name of the gas by which the gap between two glass layers is filled. It is given for information purposes only."
            },
            "GlassColor": {
                "description": "Color (tint) selection for this glazing. It is given for information purposes only."
            },
            "GlassLayers": {
                "description": "Number of glass layers within the frame. E.g. \"2\" for double glazing."
            },
            "GlassThickness1": {
                "description": "Thickness of the first (inner) glass layer."
            },
            "GlassThickness2": {
                "description": "Thickness of the second (intermediate or outer) glass layer."
            },
            "GlassThickness3": {
                "description": "Thickness of the third (outer) glass layer."
            },
            "IsCoated": {
                "description": "Indication whether the glass is coated with a material (TRUE) or not (FALSE)."
            },
            "IsLaminated": {
                "description": "Indication whether the glass is layered with other materials (TRUE) or not (FALSE)."
            },
            "IsTempered": {
                "description": "Indication whether the glass is tempered (TRUE) or not (FALSE) ."
            },
            "IsWired": {
                "description": "Indication whether the glass includes a contained wire mesh to prevent break-in (TRUE) or not (FALSE)"
            },
            "Reflectivity": {
                "description": "Fraction of the visible light that is reflected by the glazing at normal incidence. It is a value without unit."
            },
            "SolarHeatGainTransmittance": {
                "description": "Total solar heat transmittance that passes the glazing at normal incidence. It is a value without unit, often referred to as (SHGC):."
            },
            "ThermalTransmittanceSummer": {
                "description": "Thermal transmittance coefficient (U-Value) of a material. Summer thermal transmittance coefficient of the glazing only, often referred to as (U-value)"
            },
            "ThermalTransmittanceWinter": {
                "description": "Thermal transmittance coefficient (U-Value) of a material. Winter thermal transmittance coefficient of the glazing only, often referred to as (U-value)"
            },
            "Translucency": {
                "description": "Fraction of the visible light that passes the glazing at normal incidence. It is a value without unit."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgElements/Pset_DoorWindowGlazingType.xml"
    },
    "Pset_DoorWindowShadingType": {
        "properties": {
            "ExternalShadingCoefficient": {
                "description": "Radiation transmission coefficient of the outside shading device. It is a value without unit."
            },
            "InsetShadingCoefficient": {
                "description": "Radiation transmission coefficient of the shading device inside the glazing, symbol \"b-value\". It is a value without unit."
            },
            "InternalShadingCoefficient": {
                "description": "Radiation transmission coefficient of the inside shading device, symbol \"b-value\". It is a value without unit."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgElements/Pset_DoorWindowShadingType.xml"
    },
    "Pset_DrainageCatchment": {
        "properties": {
            "AreaDrained": {
                "description": "The area measure enclosed within the catchment"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcPlumbingFireProtectionDomain/Pset_DrainageCatchment.xml"
    },
    "Pset_DrainageCulvert": {
        "properties": {
            "ClearDepth": {
                "description": "The clear depth of the culvert"
            },
            "InternalWidth": {
                "description": "The internal width of the culvert"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcPlumbingFireProtectionDomain/Pset_DrainageCulvert.xml"
    },
    "Pset_DrainageOutfall": {
        "properties": {
            "InvertLevel": {
                "description": "The lowest point of the outfall"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcPlumbingFireProtectionDomain/Pset_DrainageOutfall.xml"
    },
    "Pset_DrainageReserve": {
        "properties": {
            "Width": {
                "description": "The width of the drainage reserve"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcPlumbingFireProtectionDomain/Pset_DrainageReserve.xml"
    },
    "Pset_Draughting": {
        "properties": {
            "Colour": {
                "children": {
                    "Blue": {
                        "description": "Blue component of the RGB colour specification given by an integer of 0..257"
                    },
                    "Green": {
                        "description": "Green component of the RGB colour specification given by an integer of 0..256"
                    },
                    "Red": {
                        "description": "Red component of the RGB colour specification given by an integer of 0..255"
                    }
                },
                "description": "Significant colour definition of the whole element for all shape representations, it is given for highlighting/differentiation purposes, full colour representation of individual geometric representation items, using the IFC2x2 presentation schemas, always takes precedence. In case of several colour information available (line, upper/lower surface, etc.) the sending application shall identify the most significant single colour to be included,"
            },
            "LayerName": {
                "description": "Identifier of the layer name within the sending application."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcProductExtension/Pset_Draughting.xml"
    },
    "Pset_DuctConnection": {
        "properties": {
            "ConnectionType": {
                "description": "The connection type between duct segments or fittings and other segments or fittings. If the list contains only one value, then this connection type value applies to all ports. For more than one value in the list, the connection type value applies to the port that corresponds to the list index.The following suggested items should be utilized whenever possible for correlation with port enumerations: ANGLE: Angle.  BEADEDSLEEVE: Beaded Sleeve.  BRAZED: Brazed.  COMPRESSION: Compression.  CRIMP: Crimp.  DRAWBAND: Drawband.  DRIVESLIP: Drive slip.  FLANGED: Flanged.  OUTSIDESLEEVE: Outside Sleeve.  SLIPON: Slipon.  SOLDERED: Soldered.  SSLIP: S-Slip.  STANDINGSEAM: Standing seam.  SWEDGE: Swedge.  WELDED: Welded.  NONE: No connection type. NOTDEFINED: Undefined connection type."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_DuctConnection.xml"
    },
    "Pset_DuctDesignCriteria": {
        "properties": {
            "AspectRatio": {
                "description": "The default aspect ratio"
            },
            "DesignName": {
                "description": "A name for the design values"
            },
            "DuctSealant": {
                "description": "Type of sealant used on the duct and fittings"
            },
            "DuctSizingMethod": {
                "description": "Enumeration that identifies the methodology to be used to size system components"
            },
            "FrictionLoss": {
                "description": "The pressure loss due to friction per unit length. (Data type = PressureMeasure/LengthMeasure)"
            },
            "LeakageClass": {
                "description": "Nominal leakage rating for the system components."
            },
            "MaximumVelocity": {
                "description": "The maximum design velocity of the air in the duct or fitting."
            },
            "MinimumHeight": {
                "description": "The minimum duct height for rectangular, oval or round duct"
            },
            "MinimumWidth": {
                "description": "The minimum duct width for oval or rectangular duct"
            },
            "PressureClass": {
                "description": "Nominal pressure rating of the system components. (Data type = PressureMeasure)"
            },
            "ScrapFactor": {
                "description": "Sheet metal scrap factor"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_DuctDesignCriteria.xml"
    },
    "Pset_DuctFittingPHistory": {
        "properties": {
            "AirFlowLeakage": {
                "description": "Volumetric leakage flow rate."
            },
            "AtmosphericPressure": {
                "description": "Ambient atmospheric pressure."
            },
            "LossCoefficient": {
                "description": "Dimensionless loss coefficient used for calculating fluid resistance representing the ratio of total pressure loss to velocity pressure at a referenced cross-section."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_DuctFittingPHistory.xml"
    },
    "Pset_DuctFittingTypeCommon": {
        "properties": {
            "EndStyleTreatment": {
                "description": "The end-style treatment of the duct fitting manufactured. If the list contains only one value, then this end-style applies to all ports. For more than one value in the list, the end-style value applies to the port that corresponds to the list index.The following suggested items should be utilized whenever possible for correlation with port enumerations: ANGLE: Angle.  BEADEDSLEEVE: Beaded Sleeve.  BRAZED: Brazed.  COMPRESSION: Compression.  CRIMP: Crimp.  DRAWBAND: Drawband.  DRIVESLIP: Drive slip.  FLANGED: Flanged.  OUTSIDESLEEVE: Outside Sleeve.  SLIPON: Slipon.  SOLDERED: Soldered.  SSLIP: S-Slip.  STANDINGSEAM: Standing seam.  SWEDGE: Swedge.  WELDED: Welded.  NONE: No end-style treatment has been applied. NOTDEFINED: Undefined end-style type."
            },
            "Material": {
                "description": "The duct fitting material."
            },
            "MaterialThickness": {
                "description": "The thickness of the duct fitting material."
            },
            "NominalDiameterOrWidth": {
                "description": "The nominal diameter or width of the duct fitting. If the list contains only one value, then this nominal diameter or width applies to all ports. For more than value in the list, the nominal diameter or width value applies to the port that corresponds to the list index."
            },
            "NominalHeight": {
                "description": "The nominal height of the duct fitting. Refer to NominalDiameterOrWidth for comments about interpretation of multiple items in the list."
            },
            "PressureClass": {
                "description": "Pressure classification as defined by the authority having jurisdiction (e.g., SMACNA, etc.)."
            },
            "PressureRange": {
                "description": "Allowable maximum and minimum working pressure (relative to ambient pressure)."
            },
            "SubType": {
                "description": "Subtype of fitting (I.e., 5-gore, pleated, stamped, etc.)"
            },
            "TemperatureRange": {
                "description": "Allowable maximum and minimum temperature."
            },
            "UnitWeight": {
                "description": "Weight per unit length."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_DuctFittingTypeCommon.xml"
    },
    "Pset_DuctSegmentPHistory": {
        "properties": {
            "AtmosphericPressure": {
                "description": "Ambient atmospheric pressure."
            },
            "FluidFlowLeakage": {
                "description": "Volumetric leakage flow rate."
            },
            "LeakageCurve": {
                "description": "Leakage per unit length curve versus working pressure. If a scalar is expressed then it represents LeakageClass which is flowrate per unit area at a specified pressure rating (e.g., ASHRAE Fundamentals 2001 34.16.)."
            },
            "LossCoefficient": {
                "description": "Dimensionless loss coefficient used for calculating fluid resistance representing the ratio of total pressure loss to velocity pressure at a referenced cross-section."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_DuctSegmentPHistory.xml"
    },
    "Pset_DuctSegmentTypeCommon": {
        "properties": {
            "EndStyleTreatment": {
                "description": "The end-style treatment of the duct segment manufactured. If the list contains only one value, then this end-style applies to all ports. For more than one value in the list, the end-style value applies to the port that corresponds to the list index.The following suggested items should be utilized whenever possible for correlation with port enumerations: ANGLE: Angle.  BEADEDSLEEVE: Beaded Sleeve.  BRAZED: Brazed.  COMPRESSION: Compression.  CRIMP: Crimp.  DRAWBAND: Drawband.  DRIVESLIP: Drive slip.  FLANGED: Flanged.  OUTSIDESLEEVE: Outside Sleeve.  SLIPON: Slipon.  SOLDERED: Soldered.  SSLIP: S-Slip.  STANDINGSEAM: Standing seam.  SWEDGE: Swedge.  WELDED: Welded.  NONE: No end-style treatment has been applied. NOTDEFINED: Undefined end-style type."
            },
            "Length": {
                "description": "Length of the duct segment. If a Length attribute is provided in the occurrence property set, it supersedes this value."
            },
            "LongitudinalSeam": {
                "description": "The type of seam to be used along the longitudinal axis of the duct segment."
            },
            "Material": {
                "description": "The duct segment material."
            },
            "MaterialThickness": {
                "description": "The thickness of the duct segment material."
            },
            "NominalDiameterOrWidth": {
                "description": "The nominal diameter or width of the duct segment. If the list contains only one value, then this nominal diameter or width applies to all ports. For more than value in the list, the nominal diameter or width value applies to the port that corresponds to the list index."
            },
            "NominalHeight": {
                "description": "The nominal height of the duct segment. Refer to NominalDiameterOrWidth for comments about interpretation of multiple items in the list."
            },
            "PressureRange": {
                "description": "Allowable maximum and minimum working pressure (relative to ambient pressure)."
            },
            "Reinforcement": {
                "description": "The type of reinforcement, if any, used for the duct segment."
            },
            "ReinforcementSpacing": {
                "description": "The spacing between reinforcing elements."
            },
            "Shape": {
                "description": "Cross sectional shape. Note that this shape is uniform throughout the length of the segment. For nonuniform shapes, a transition fitting should be used instead."
            },
            "TemperatureRange": {
                "description": "Allowable maximum and minimum temperature."
            },
            "UnitWeight": {
                "description": "Weight per unit length."
            },
            "WorkingPressure": {
                "description": "Pressure classification as defined by the authority having jurisdiction (e.g., SMACNA, etc.)."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_DuctSegmentTypeCommon.xml"
    },
    "Pset_DuctSilencerPHistory": {
        "properties": {
            "AirFlowRate": {
                "description": "Volumetric air flow rate."
            },
            "AirPressureDropCurve": {
                "description": "Air pressure drop as a function of air flow rate."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_DuctSilencerPHistory.xml"
    },
    "Pset_DuctSilencerTypeCommon": {
        "properties": {
            "AirFlowrateRange": {
                "description": "Possible range of airflow that can be delivered."
            },
            "HasExteriorInsulation": {
                "description": "TRUE if the silencer has exterior insulation. FALSE if it does not."
            },
            "HydraulicDiameter": {
                "description": "Hydraulic diameter"
            },
            "Length": {
                "description": "The finished length of the silencer."
            },
            "Shape": {
                "description": "Cross sectional shape."
            },
            "TemperatureRange": {
                "description": "Allowable minimum and maximum temperature."
            },
            "Weight": {
                "description": "The weight of the silencer."
            },
            "WorkingPressureRange": {
                "description": "Allowable minimum and maximum  working pressure (relative to ambient pressure)."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_DuctSilencerTypeCommon.xml"
    },
    "Pset_ElectricDistributionPointCommon": {
        "properties": {
            "CaseMaterial": {
                "description": "Material from which the casing surrounding the distribution point is constructed."
            },
            "CaseWeight": {
                "description": "Weight of case"
            },
            "IsMain": {
                "description": "Identifies if the current instance is a main distribution point or topmost level in an electrical distribution hierarchy (= TRUE) or a sub-main distribution point (= FALSE)."
            },
            "NumberOfDoors": {
                "description": "Number of doors"
            },
            "NumberOfOpenings": {
                "description": "Maximum number of openings that can fit with the case for normal use. In the openings there must be nipples, so cable may run through."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcElectricalDomain/Pset_ElectricDistributionPointCommon.xml"
    },
    "Pset_ElectricGeneratorTypeCommon": {
        "properties": {
            "ElectricGeneratorEfficiency": {
                "description": "The ratio of output capacity to intake capacity."
            },
            "MaximumPowerOutput": {
                "description": "The maximum output power rating of the engine."
            },
            "StartCurrentFactor": {
                "description": "IEC. Start current factor defines how large the peek starting current will become on the engine. StartCurrentFactor is multiplied to NominalCurrent and we get the start current."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcElectricalDomain/Pset_ElectricGeneratorTypeCommon.xml"
    },
    "Pset_ElectricHeaterTypeElectricalCableHeater": {
        "properties": {
            "HeatOutputPerUnitLength": {
                "description": "The amount of heat output per unit length of heat emitter."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcElectricalDomain/Pset_ElectricHeaterTypeElectricalCableHeater.xml"
    },
    "Pset_ElectricHeaterTypeElectricalMatHeater": {
        "properties": {
            "HeatOutputPerUnitArea": {
                "description": "The amount of heat output per unit area of heat emitter."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcElectricalDomain/Pset_ElectricHeaterTypeElectricalMatHeater.xml"
    },
    "Pset_ElectricHeaterTypeElectricalPointHeater": {
        "properties": {
            "HeatOutput": {
                "description": "The total amount of heat output by the heat emitter."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcElectricalDomain/Pset_ElectricHeaterTypeElectricalPointHeater.xml"
    },
    "Pset_ElectricalCircuit": {
        "properties": {
            "Diversity": {
                "description": "A factor that is a means of reducing the cable size on the basis that not all the connected load will be drawing current simultaneously."
            },
            "MaximumAllowedVoltageDrop": {
                "description": "The maximum voltage drop across the circuit that must not be exceeded."
            },
            "NetImpedance": {
                "description": "The maximum earth loop impedance of a circuit (typically stated as the variable Zs)"
            },
            "NumberOfPhases": {
                "description": "Number of phases within this circuit."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcElectricalDomain/Pset_ElectricalCircuit.xml"
    },
    "Pset_ElectricalDeviceCommon": {
        "properties": {
            "ElectricalDeviceNominalPower": {
                "description": "The output power rating that is certified for a device."
            },
            "HasProtectiveEarth": {
                "description": "Indicates whether the electrical device has a protective earth connection (=TRUE) or not (= FALSE)."
            },
            "IP_Code": {
                "description": "IEC 529 (1989) Classification of degrees of protection provided by enclosures (IP Code)"
            },
            "InsulationStandardClass": {
                "description": "Insulation standard classes provides basic protection information against electric shock. Defines levels of insulation required in terms of constructional requirements (creepage and clearance distances) and electrical requirements (compliance with electric strength tests). Basic insulation is considered to be shorted under single fault conditions. The actual values required depend on the working voltage to which the insulation is subjected, as well as other factors. Also indicates whether the electrical device has a protective earth connection."
            },
            "NominalCurrent": {
                "description": "The maximum allowed current that a device is certified to handle."
            },
            "NominalFrequencyRange": {
                "description": "The upper and lower limits of frequency for which the operation of the device is certified."
            },
            "NominalVoltage": {
                "description": "The range of allowed voltage that a device is certified to handle. The upper bound of this value is the maximum."
            },
            "NumberOfPoles": {
                "description": "The number of logical connections that can be made on an electrical device."
            },
            "PhaseAngle": {
                "description": "The angular difference between two waveforms of the same frequency"
            },
            "PhaseReference": {
                "description": "The phase identification used for the device electrical input. This should be the same phase identifier that is used for the conductor segment providing the electrical service to the device. In general, it is recommended that IEC recommendations for phase identification are used (L1, L2 etc.). However, other phase identifiers may be used such as by color (Red, Blue, Yellow) or by number (1, 2, 3) etc."
            },
            "UsageCurrent": {
                "description": "The current that a device is actually handling or is calculated to be handling at a point in time."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcElectricalDomain/Pset_ElectricalDeviceCommon.xml"
    },
    "Pset_ElementShading": {
        "properties": {
            "AverageSolarTransmittance": {
                "description": "Overall or average ratio of the solar flux transmitted through a body to that incident upon it."
            },
            "AverageVisibleTransmittance": {
                "description": "Overall or average ratio of the visible spectral flux transmitted through a body to that incident upon it."
            },
            "Azimuth": {
                "description": "Azimuth of the element as derived from the placement of the element shape, by convention: North = 0' and measurement is done clockwise (I.e. east = 90', if unit is grad). The calculation procedure will be specific for each type of element.  In cases of inconsistency between the geometric parameters and the azimuth property, provided in the attached property set, the geometric parameters take precedence."
            },
            "Color": {
                "description": "The color of the surface."
            },
            "Inclination": {
                "description": "Inclination of the element as derived from the placement of the element shape, by convention: Vertical = 0', horizontal = 90', if unit is grad). The calculation procedure will be specific for each type of element.  In cases of inconsistency between the geometric parameters and the azimuth property, provided in the attached property set, the geometric parameters take precedence."
            },
            "Reflectance": {
                "description": "The ratio of reflected power to incident power."
            },
            "Roughness": {
                "description": "A measure of the vertical deviations of the surface."
            },
            "ShadingDeviceType": {
                "description": "Specifies the type of shading device."
            },
            "TiltRange": {
                "description": "The minimum and maximum angles of possible tilt defined in the plane perpendicular to the extrusion axis (X-Axis of the local placement). The angle shall be measured from the orientation of the Z-Axis in the local placement."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcProductExtension/Pset_ElementShading.xml"
    },
    "Pset_EnergyConsumptionPHistoryElectricity": {
        "properties": {
            "ApparentPower": {
                "description": "Apparent power."
            },
            "Current": {
                "description": "Current."
            },
            "PowerFactor": {
                "description": "Power factor."
            },
            "ReactivePower": {
                "description": "Reactive power."
            },
            "RealPower": {
                "description": "Real power."
            },
            "Voltage": {
                "description": "Operating voltage."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_EnergyConsumptionPHistoryElectricity.xml"
    },
    "Pset_EnergyConsumptionPHistoryFuel": {
        "properties": {
            "Flowrate": {
                "description": "The flowrate of the fuel."
            },
            "Pressure": {
                "description": "The pressure of the fuel."
            },
            "Temperature": {
                "description": "The temperature of the fuel."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_EnergyConsumptionPHistoryFuel.xml"
    },
    "Pset_EnergyConsumptionPHistorySteam": {
        "properties": {
            "Flowrate": {
                "description": "The mass flowrate of the steam."
            },
            "Pressure": {
                "description": "Operating steam pressure."
            },
            "Quality": {
                "description": "Steam quality."
            },
            "Temperature": {
                "description": "Operating steam temperature."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_EnergyConsumptionPHistorySteam.xml"
    },
    "Pset_EnergyConversionDeviceCoil": {
        "properties": {
            "HasSoundAttentuation": {
                "description": "TRUE if the coil has sound attenuation, FALSE if it does not."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgServiceElements/Pset_EnergyConversionDeviceCoil.xml"
    },
    "Pset_EnergyConversionDeviceSpaceHeaterPanel": {
        "properties": {
            "NumberOfPanels": {
                "description": "Number of panels."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgServiceElements/Pset_EnergyConversionDeviceSpaceHeaterPanel.xml"
    },
    "Pset_EnergyConversionDeviceSpaceHeaterSectional": {
        "properties": {
            "NumberOfSections": {
                "description": "Number of vertical sections, measured in the direction of flow."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgServiceElements/Pset_EnergyConversionDeviceSpaceHeaterSectional.xml"
    },
    "Pset_EvaporativeCoolerPHistory": {
        "properties": {
            "AirPressureDropCurve": {
                "description": "Air pressure drop as function of air flow rate."
            },
            "Effectiveness": {
                "description": "Ratio of the change in dry bulb temperature of the (primary) air stream to the difference between the entering dry bulb temperature of the (primary) air and the wet-bulb temperature of the (secondary) air."
            },
            "EffectivenessTable": {
                "description": "Total heat transfer effectiveness curve as a function of the primary air flow rate."
            },
            "LatentHeatTransferRate": {
                "description": "Latent heat transfer rate to primary air flow."
            },
            "SensibleHeatTransferRate": {
                "description": "Sensible heat transfer rate to primary air flow."
            },
            "TotalHeatTransferRate": {
                "description": "Total heat transfer rate to primary air flow."
            },
            "WaterPressDropCurve": {
                "description": "Water pressure drop as function of water flow rate."
            },
            "WaterSumpTemperature": {
                "description": "Water sump temperature."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_EvaporativeCoolerPHistory.xml"
    },
    "Pset_EvaporativeCoolerTypeCommon": {
        "properties": {
            "FlowArrangement": {
                "description": "CounterFlow: Air and water flow enter in different directions. CrossFlow: Air and water flow are perpendicular. ParallelFlow: Air and water flow enter in same directions."
            },
            "HeatExchangeArea": {
                "description": "Heat exchange area."
            },
            "HeatExchangerMediaMaterials": {
                "description": "Heat exchanger media material."
            },
            "OperationTemperatureRange": {
                "description": "Allowable operation ambient air temperature range."
            },
            "WaterRequirement": {
                "description": "Make-up water requirement."
            },
            "Weight": {
                "description": "Weight of the evaporative cooler."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_EvaporativeCoolerTypeCommon.xml"
    },
    "Pset_EvaporatorPHistory": {
        "properties": {
            "CompressorEvaporatorHeatGain": {
                "description": "Heat gain between the evaporator outlet and the compressor inlet."
            },
            "CompressorEvaporatorPressureDrop": {
                "description": "Pressure drop between the evaporator outlet and the compressor inlet."
            },
            "EvaporatingTemperature": {
                "description": "Refrigerant evaporating temperature."
            },
            "EvaporatorMeanVoidFraction": {
                "description": "Mean void fraction in evaporator."
            },
            "ExteriorHeatTransferCoefficient": {
                "description": "Exterior heat transfer coefficient associated with exterior surface area."
            },
            "HeatRejectionRate": {
                "description": "Sum of the refrigeration effect and the heat equivalent of the power input to the compressor."
            },
            "InteriorHeatTransferCoefficient": {
                "description": "Interior heat transfer coefficient associated with interior surface area."
            },
            "LogarithmicMeanTemperatureDifference": {
                "description": "Logarithmic mean temperature difference between refrigerant and water or air."
            },
            "RefrigrerantFoulingResistance": {
                "description": "Fouling resistance on the refrigerant side."
            },
            "UAcurves": {
                "description": "UV = f (VExterior, VInterior), UV as a function of interior and exterior fluid flow velocity at the entrance."
            },
            "WaterFoulingResistance": {
                "description": "Fouling resistance on water/air side."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_EvaporatorPHistory.xml"
    },
    "Pset_EvaporatorTypeCommon": {
        "properties": {
            "EvaporatorCoolant": {
                "description": "The fluid used for the coolant in the evaporator."
            },
            "EvaporatorMediumType": {
                "description": "ColdLiquid: Evaporator is using liquid type of fluid to exchange heat with refrigerant. ColdAir: Evaporator is using air to exchange heat with refrigerant."
            },
            "ExternalSurfaceArea": {
                "description": "External surface area (both primary and secondary area)."
            },
            "InternalRefrigerantVolume": {
                "description": "Internal volume of evaporator (refrigerant side)."
            },
            "InternalSurfaceArea": {
                "description": "Internal surface area."
            },
            "InternalWaterVolume": {
                "description": "Internal volume of evaporator (water side)."
            },
            "NominalHeatTransferArea": {
                "description": "Nominal heat transfer surface area associated with nominal overall heat transfer coefficient."
            },
            "NominalHeatTransferCoefficient": {
                "description": "Nominal overall heat transfer coefficient associated with nominal heat transfer area."
            },
            "RefrigerantClass": {
                "description": "Refrigerant class used by the compressor. CFC: Chlorofluorocarbons. HCFC: Hydrochlorofluorocarbons. HFC: Hydrofluorocarbons."
            },
            "RefrigerantType": {
                "description": "Refrigerant material."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_EvaporatorTypeCommon.xml"
    },
    "Pset_FanPHistory": {
        "properties": {
            "DischargePressureLoss": {
                "description": "Fan discharge pressure loss associated with the discharge arrangement."
            },
            "DischargeVelocity": {
                "description": "The speed at which air discharges from the fan through the fan housing discharge opening."
            },
            "DrivePowerLoss": {
                "description": "Fan drive power losses associated with the type of connection between the motor and the fan wheel."
            },
            "EfficiencyCurve": {
                "description": "Fan efficiency =f (flow rate)."
            },
            "FanEfficiency": {
                "description": "Fan mechanical efficiency."
            },
            "FanPowerRate": {
                "description": "Fan power consumption."
            },
            "FanRotationSpeed": {
                "description": "Fan rotation speed."
            },
            "OverallEfficiency": {
                "description": "Total efficiency of motor and fan."
            },
            "PressureCurve": {
                "description": "Pressure rise = f (flow rate)."
            },
            "ShaftPowerRate": {
                "description": "Fan shaft power."
            },
            "WheelTipSpeed": {
                "description": "Fan blade tip speed, typically defined as the linear speed of the tip of the fan blade furthest from the shaft."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_FanPHistory.xml"
    },
    "Pset_FanTypeCommon": {
        "properties": {
            "CapacityControlType": {
                "description": "InletVane: Control by adjusting inlet vane VariableSpeedDrive: Control by variable speed drive  BladePitchAngle: Control by adjusting blade pitch angle TwoSpeed: Control by switch between high and low speed DischargeDamper: Control by modulating discharge damper"
            },
            "HousingMaterial": {
                "description": "The material used to construct the fan housing."
            },
            "MotorDriveType": {
                "description": "Motor drive type: DIRECTDRIVE: Direct drive.  BELTDRIVE: Belt drive.  COUPLING: Coupling.  OTHER: Other type of motor drive.  NOTKNOWN: Unknown motor drive type. UNSET: Unspecified motor drive type."
            },
            "NominalAirFlowRate": {
                "description": "Nominal air flow rate."
            },
            "NominalPowerRate": {
                "description": "Nominal fan power rate."
            },
            "NominalRotationSpeed": {
                "description": "Nominal fan wheel speed."
            },
            "NominalStaticPressure": {
                "description": "The static pressure within the air stream that the fan must overcome to insure designed circulation of air"
            },
            "NominalTotalPressure": {
                "description": "Nominal total pressure rise across the fan."
            },
            "OperationTemperatureRange": {
                "description": "Allowable operation ambient air temperature range."
            },
            "OperationalCriteria": {
                "description": "Time of operation at maximum operational ambient air temperature."
            },
            "Weight": {
                "description": "Weight of the fan."
            },
            "WheelMaterial": {
                "description": "The material used to construct the fan wheel."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_FanTypeCommon.xml"
    },
    "Pset_FanTypeSmokeControl": {
        "properties": {
            "MaximumDesignTemperature": {
                "description": "Maximum design operational temperature."
            },
            "OperationalCriteria": {
                "description": "Time of operation at maximum operational ambient air temperature."
            },
            "SmokeControlFlowrate": {
                "description": "Flowrate of fan while operating as a part of the smoke control system."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_FanTypeSmokeControl.xml"
    },
    "Pset_FilterPHistory": {
        "properties": {
            "CountedEfficiency": {
                "description": "Filter efficiency based the particle counts concentration before and after filter against particles with certain size distribution."
            },
            "ParticleMassHolding": {
                "description": "Mass of particle holding in the filter."
            },
            "WeightedEfficiency": {
                "description": "Filter efficiency based the particle weight concentration before and after filter against particles with certain size distribution."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_FilterPHistory.xml"
    },
    "Pset_FilterTypeAirParticleFilter": {
        "properties": {
            "AirParticleFilterType": {
                "description": "A panel dry type extended surface filter is a dry-type air filter with random fiber mats or blankets in the forms of pockets, V-shaped or radial pleats, and include the following: CoarseFilter: Filter with a efficiency lower than 30% for atmosphere dust-spot. CoarseMetalScreen: Filter made of metal screen. CoarseCellFoams: Filter made of cell foams. CoarseSpunGlass: Filter made of spun glass. MediumFilter: Filter with an efficiency between 30-98% for atmosphere dust-spot. MediumElectretFilter: Filter with fine electret synthetic fibers. MediumNaturalFiberFilter: Filter with natural fibers. HEPAFilter: High efficiency particulate air filter. ULPAFilter: Ultra low penetration air filter. MembraneFilters: Filter made of membrane for certain pore diameters in flat sheet and pleated form. A renewable media with a moving curtain viscous filter are random-fiber media coated with viscous substance in roll form or curtain where fresh media is fed across the face of the filter and the dirty media is rewound onto a roll at the bottom or to into a reservoir: RollForm: Viscous filter used in roll form. AdhesiveReservoir: Viscous filter used in moving curtain form. A renewable moving curtain dry media filter is a random-fiber dry media of relatively high porosity used in moving-curtain(roll) filters. An electrical filter uses electrostatic precipitation to remove and collect particulate contaminants."
            },
            "CountedEfficiencyCurve": {
                "description": "Counted efficiency curve as a function of dust holding weight, efficiency = f (dust holding weight)."
            },
            "DustHoldingCapacity": {
                "description": "Maximum filter dust holding capacity."
            },
            "FaceSurfaceArea": {
                "description": "Face area of filter frame."
            },
            "FrameMaterial": {
                "description": "Filter frame material."
            },
            "MediaExtendedArea": {
                "description": "Total extended media area."
            },
            "MediaMaterial": {
                "description": "Filter media material."
            },
            "NominalCountedEfficiency": {
                "description": "Nominal filter efficiency based the particle count concentration before and after the filter against particles with a certain size distribution."
            },
            "NominalWeightedEfficiency": {
                "description": "Nominal filter efficiency based the particle weight concentration before and after the filter against particles with a certain size distribution."
            },
            "PressureDropCurve": {
                "description": "Under certain dust holding weight, DelPressure = f (fluidflowRate)"
            },
            "SeparationType": {
                "description": "Air particulate filter media separation type."
            },
            "WeightedEfficiencyCurve": {
                "description": "Weighted efficiency curve as a function of dust holding weight, efficiency = f (dust holding weight)."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_FilterTypeAirParticleFilter.xml"
    },
    "Pset_FilterTypeCommon": {
        "properties": {
            "FinalResistance": {
                "description": "Filter fluid resistance when replacement is required (i.e., Pressure drop at the maximum air flowrate across the filter when the filter needs replacement per ASHRAE Standard 52.1)."
            },
            "FlowRateRange": {
                "description": "Possible range of fluid flowrate that can be delivered."
            },
            "InitialResistance": {
                "description": "Initial new filter fluid resistance (i.e., pressure drop at the maximum air flowrate across the filter when the filter is new per ASHRAE Standard 52.1)."
            },
            "MediaMaterial": {
                "description": "Filter media material."
            },
            "NominalFilterFaceVelocity": {
                "description": "Filter face velocity."
            },
            "NominalFlowrate": {
                "description": "Nominal fluid flow rate through the filter."
            },
            "NominalMediaSurfaceVelocity": {
                "description": "Average fluid velocity at the media surface."
            },
            "NominalParticleGeometricMeanDiameter": {
                "description": "Particle geometric mean diameter associated with nominal efficiency."
            },
            "NominalParticleGeometricStandardDeviation": {
                "description": "Particle geometric standard deviation associated with nominal efficiency."
            },
            "NominalPressureDrop": {
                "description": "Total pressure drop across the filter."
            },
            "OperationTemperatureRange": {
                "description": "Allowable operation ambient fluid temperature range."
            },
            "Weight": {
                "description": "Weight of filter."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_FilterTypeCommon.xml"
    },
    "Pset_FireRatingProperties": {
        "properties": {
            "FireResistanceRating": {
                "description": "Fire rating identifying the entity's fire resistive value (e.g., 1-hour, 2-hour, etc.) so that its resistance to fire can be compared to that of the surrounding structure."
            },
            "IsCombustible": {
                "description": "Combustibility (YES it is combustible or NO it is not combustible)."
            },
            "SurfaceSpreadOfFlame": {
                "description": "Surface spread of flame characteristics."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgServiceElements/Pset_FireRatingProperties.xml"
    },
    "Pset_FireSuppressionTerminalTypeBreechingInlet": {
        "properties": {
            "BreechingInletType": {
                "description": "Defines the type of breeching inlet."
            },
            "CouplingType": {
                "description": "Defines the type coupling on the inlet of the breeching inlet."
            },
            "HasCaps": {
                "description": "Does the inlet connection have protective caps."
            },
            "InletDiameter": {
                "description": "The inlet diameter of the breeching inlet."
            },
            "Material": {
                "description": "Material from which the object is constructed"
            },
            "OutletDiameter": {
                "description": "The outlet diameter of the breeching inlet."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcPlumbingFireProtectionDomain/Pset_FireSuppressionTerminalTypeBreechingInlet.xml"
    },
    "Pset_FireSuppressionTerminalTypeFireHydrant": {
        "properties": {
            "BodyColor": {
                "description": "Color of the body of the hydrant."
            },
            "CapColor": {
                "description": "Color of the caps of the hydrant."
            },
            "DischargeFlowRate": {
                "description": "The volumetric rate of fluid discharge."
            },
            "FireHydrantType": {
                "description": "Defines the range of hydrant types from which the required type can be selected where:"
            },
            "FlowClass": {
                "description": "Alphanumeric indication of the flow class of a hydrant (may be used in connection with or instead of the FlowRate property)"
            },
            "HoseConnectionSize": {
                "description": "The size of connections to which a hose may be connected (other than that to be linked to a pumping unit)."
            },
            "NumberOfHoseConnections": {
                "description": "The number of hose connections on the hydrant (excluding the pumper connection)"
            },
            "PressureRating": {
                "description": "Maximum pressure that the hydrant is manufactured to withstand."
            },
            "PumperConnectionSize": {
                "description": "The size of a connection to which a fire hose may be connected that is then linked to a pumping unit."
            },
            "WaterIsPotable": {
                "description": "Indication of whether the water flow from the hydrant is potable (set TRUE) or non potable (set FALSE)"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcPlumbingFireProtectionDomain/Pset_FireSuppressionTerminalTypeFireHydrant.xml"
    },
    "Pset_FireSuppressionTerminalTypeHoseReel": {
        "properties": {
            "ClassOfService": {
                "description": "A classification of usage of the hose reel that may be applied."
            },
            "ClassificationAuthority": {
                "description": "The name of the authority that applies the classification of service to the hose reel (e.g. NFPA/FEMA)"
            },
            "HoseDiameter": {
                "description": "Notional diameter (bore) of the hose."
            },
            "HoseLength": {
                "description": "Notional length of the hose fitted to the hose reel when fully extended."
            },
            "HoseNozzleType": {
                "description": "Identifies the predefined types of nozzle (in terms of spray pattern) fitted to the end of the hose from which the type required may be set."
            },
            "HoseReelMountingType": {
                "description": "Identifies the predefined types of hose reel mounting from which the type required may be set."
            },
            "HoseReelType": {
                "description": "Identifies the predefined types of hose arrangement from which the type required may be set."
            },
            "InletConnectionSize": {
                "description": "Size of the inlet connection to the hose reel."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcPlumbingFireProtectionDomain/Pset_FireSuppressionTerminalTypeHoseReel.xml"
    },
    "Pset_FireSuppressionTerminalTypeSprinkler": {
        "properties": {
            "Activation": {
                "description": "Identifies the predefined methods of sprinkler activation from which that required may be set."
            },
            "ActivationTemperature": {
                "description": "The temperature at which the object is designed to activate."
            },
            "BulbLiquidColor": {
                "description": "The color of the liquid in the bulb for a bulb activated sprinkler. Note that the liquid color varies according to the activation temperature requirement of the sprinkler head. Note also that this property does not need to be asserted for quick response activated sprinklers."
            },
            "ConnectionSize": {
                "description": "Size of the inlet connection to the sprinkler."
            },
            "CoverageArea": {
                "description": "The area that the sprinkler is designed to protect."
            },
            "DeflectorMaterial": {
                "description": "The material used to construct the deflector plate."
            },
            "DischargeCoefficient": {
                "description": "The coefficient of flow at the sprinkler"
            },
            "DischargeFlowRate": {
                "description": "The volumetric rate of fluid discharge."
            },
            "FrameMaterial": {
                "description": "The material used to construct the frame of the sprinkler."
            },
            "HasDeflector": {
                "description": "Indication of whether the sprinkler has a deflector (baffle) fitted to diffuse the discharge on activation (= TRUE) or not (= FALSE)."
            },
            "MaximumWorkingPressure": {
                "description": "Maximum pressure that the object is manufactured to withstand."
            },
            "ResidualFlowingPressure": {
                "description": "The residual flowing pressure in the pipeline at which the discharge flow rate is determined."
            },
            "Response": {
                "description": "Identifies the predefined methods of sprinkler response from which that required may be set."
            },
            "SprinklerType": {
                "description": "Identifies the predefined types of sprinkler  from which the type required may be set."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcPlumbingFireProtectionDomain/Pset_FireSuppressionTerminalTypeSprinkler.xml"
    },
    "Pset_FlowControllerDamper": {
        "properties": {
            "SizingMethod": {
                "description": "Identifies whether the damper is sized nominally or with exact measurements: NOMINAL: Nominal sizing method.  EXACT: Exact sizing method."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgServiceElements/Pset_FlowControllerDamper.xml"
    },
    "Pset_FlowControllerFlowMeter": {
        "properties": {
            "Purpose": {
                "description": "Enumeration defining the purpose of the flow meter occurrence."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgServiceElements/Pset_FlowControllerFlowMeter.xml"
    },
    "Pset_FlowFittingDuctFitting": {
        "properties": {
            "AbsoluteRoughnessFactor": {
                "description": "The absolute roughness factor of the duct fitting."
            },
            "Color": {
                "description": "The color of the duct fitting."
            },
            "HasLiner": {
                "description": "TRUE if the fitting has interior duct insulating lining, FALSE if it does not."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgServiceElements/Pset_FlowFittingDuctFitting.xml"
    },
    "Pset_FlowFittingPipeFitting": {
        "properties": {
            "Color": {
                "description": "The color of the pipe fitting."
            },
            "InteriorRoughnessCoefficient": {
                "description": "The interior roughness of the pipe fitting material."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgServiceElements/Pset_FlowFittingPipeFitting.xml"
    },
    "Pset_FlowInstrumentTypePressureGauge": {
        "properties": {
            "DisplaySize": {
                "description": "The physical size of the display. For a dial pressure gauge it will be the diameter of the dial."
            },
            "PressureGaugeType": {
                "description": "Identifies the means by which pressure is displayed."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcBuildingControlsDomain/Pset_FlowInstrumentTypePressureGauge.xml"
    },
    "Pset_FlowInstrumentTypeThermometer": {
        "properties": {
            "DisplaySize": {
                "description": "The physical size of the display. In the case of a stem thermometer, this will be the length of the stem. For a dial thermometer, it will be the diameter of the dial."
            },
            "ThermometerType": {
                "description": "Identifies the means by which temperature is displayed."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcBuildingControlsDomain/Pset_FlowInstrumentTypeThermometer.xml"
    },
    "Pset_FlowMeterTypeCommon": {
        "properties": {
            "IsMain": {
                "description": "Indicates whether the meter is the main meter on the system. If FALSE, it is a submeter."
            },
            "ReadOutType": {
                "description": "Indication of the form that readout from the meter takes. In the case of a dial read out, this may comprise multiple dials that give a cumulative reading and/or a mechanical odometer."
            },
            "RemoteReading": {
                "description": "Indicates whether the meter has a connection for remote reading through connection of a communication device (set TRUE) or not (set FALSE)."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_FlowMeterTypeCommon.xml"
    },
    "Pset_FlowMeterTypeEnergyMeter": {
        "properties": {
            "ConnectionSize": {
                "description": "Defines the size of inlet and outlet pipe connections to the meter."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_FlowMeterTypeEnergyMeter.xml"
    },
    "Pset_FlowMeterTypeGasMeter": {
        "properties": {
            "ConnectionSize": {
                "description": "Defines the size of inlet and outlet pipe connections to the meter."
            },
            "GasType": {
                "description": "Defines the types of gas that may be specified."
            },
            "MaximumFlowRate": {
                "description": "Maximum rate of flow which the meter is expected to pass."
            },
            "MaximumPressureLoss": {
                "description": "Pressure loss expected across the meter under conditions of maximum flow."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_FlowMeterTypeGasMeter.xml"
    },
    "Pset_FlowMeterTypeOilMeter": {
        "properties": {
            "ConnectionSize": {
                "description": "Defines the size of inlet and outlet pipe connections to the meter."
            },
            "MaximumFlowRate": {
                "description": "Maximum rate of flow which the meter is expected to pass."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_FlowMeterTypeOilMeter.xml"
    },
    "Pset_FlowMeterTypeWaterMeter": {
        "properties": {
            "BackflowPreventerType": {
                "description": "Identifies the type of backflow preventer installed to prevent the backflow of contaminated or polluted water from an irrigation/reticulation system to a potable water supply."
            },
            "ConnectionSize": {
                "description": "Defines the size of inlet and outlet pipe connections to the meter."
            },
            "MaximumFlowRate": {
                "description": "Maximum rate of flow which the meter is expected to pass."
            },
            "MaximumPressureLoss": {
                "description": "Pressure loss expected across the meter under conditions of maximum flow."
            },
            "Type": {
                "description": "Defines the allowed values for selection of the flow meter operation type."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_FlowMeterTypeWaterMeter.xml"
    },
    "Pset_FlowMovingDeviceCompressor": {
        "properties": {
            "ImpellerDiameter": {
                "description": "Diameter of compressor impeller - used to scale performance of geometrically similar compressors."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgServiceElements/Pset_FlowMovingDeviceCompressor.xml"
    },
    "Pset_FlowMovingDeviceFan": {
        "properties": {
            "ApplicationOfFan": {
                "description": "The functional application of the fan: SUPPLYAIR: Supply air fan.  RETURNAIR: Return air fan.  EXHAUSTAIR: Exhaust air fan.  OTHER: Other type of application not defined above."
            },
            "CoilPosition": {
                "description": "Defines the relationship between a fan and a coil. DrawThrough: Fan located downstream of the coil. BlowThrough: Fan located upstream of the coil."
            },
            "DischargeType": {
                "description": "Defines the type of connection at the fan discharge. Duct: Discharge into ductwork. Screen: Discharge into screen outlet. Louver: Discharge into a louver. Damper: Discharge into a damper."
            },
            "FanMountingType": {
                "description": "Defines the method of mounting the fan in the building."
            },
            "FractionOfMotorHeatToAirStream": {
                "description": "Fraction of the motor heat released into the fluid flow."
            },
            "ImpellerDiameter": {
                "description": "Diameter of fan wheel - used to scale performance of geometrically similar fans."
            },
            "MotorPosition": {
                "description": "Defines the location of the motor relative to the air stream. InAirStream: Fan motor is in the air stream. OutOfAirStream: Fan motor is out of the air stream."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgServiceElements/Pset_FlowMovingDeviceFan.xml"
    },
    "Pset_FlowMovingDeviceFanCentrifugal": {
        "properties": {
            "Arrangement": {
                "description": "Defines the fan and motor drive arrangement as defined by AMCA: ARRANGEMENT1: Arrangement 1.  ARRANGEMENT2: Arrangement 2.  ARRANGEMENT3: Arrangement 3.  ARRANGEMENT4: Arrangement 4.  ARRANGEMENT7: Arrangement 7.  ARRANGEMENT8: Arrangement 8.  ARRANGEMENT9: Arrangement 9.  ARRANGEMENT10: Arrangement 10.  OTHER: Other type of fan drive arrangement."
            },
            "DirectionOfRotation": {
                "description": "The direction of the centrifugal fan wheel rotation when viewed from the drive side of the fan: CLOCKWISE: Clockwise.  COUNTERCLOCKWISE: Counter-clockwise.  OTHER: Other type of fan rotation."
            },
            "DischargePosition": {
                "description": "Centrifugal fan discharge position: TOPHORIZONTAL: Top horizontal discharge.  TOPANGULARDOWN: Top angular down discharge.  DOWNBLAST: Downblast discharge.  BOTTOMANGULARDOWN: Bottom angular down discharge.  BOTTOMHORIZONTAL: Bottom horizontal discharge.  BOTTOMANGULARUP: Bottom angular up discharge.  UPBLAST: Upblast discharge.  TOPANGULARUP: Top angular up discharge.  OTHER: Other type of fan arrangement."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgServiceElements/Pset_FlowMovingDeviceFanCentrifugal.xml"
    },
    "Pset_FlowMovingDevicePump": {
        "properties": {
            "BaseType": {
                "description": "Defines general types of pump bases: FRAME: Frame.  BASE: Base.  NONE: There is no pump base, such as an inline pump.  OTHER: Other type of pump base."
            },
            "DriveConnectionType": {
                "description": "The way the pump drive mechanism is connected to the pump: DIRECTDRIVE: Direct drive.  BELTDRIVE: Belt drive.  COUPLING: Coupling.  OTHER: Other type of drive connection."
            },
            "ImpellerDiameter": {
                "description": "Diameter of pump impeller - used to scale performance of geometrically similar pumps."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgServiceElements/Pset_FlowMovingDevicePump.xml"
    },
    "Pset_FlowSegmentDuctSegment": {
        "properties": {
            "Color": {
                "description": "The color of the duct segment."
            },
            "HasLiner": {
                "description": "TRUE if the fitting has interior duct insulating lining, FALSE if it does not."
            },
            "InteriorRoughnessCoefficient": {
                "description": "The interior roughness of the duct fitting material."
            },
            "Length": {
                "description": "Length of the duct segment."
            },
            "MaterialThickness": {
                "description": "The thickness of the duct fitting material."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgServiceElements/Pset_FlowSegmentDuctSegment.xml"
    },
    "Pset_FlowSegmentPipeSegment": {
        "properties": {
            "Color": {
                "description": "The color of the pipe segment."
            },
            "Gradient": {
                "description": "The gradient of the pipe segment."
            },
            "InteriorRoughnessCoefficient": {
                "description": "The interior roughness coefficient of the pipe segment."
            },
            "InvertElevation": {
                "description": "The invert elevation relative to the datum established for the project."
            },
            "Length": {
                "description": "Length of the pipe segment."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgServiceElements/Pset_FlowSegmentPipeSegment.xml"
    },
    "Pset_FlowStorageDeviceTank": {
        "properties": {
            "HasLadder": {
                "description": "Indication of whether the tank is provided with a ladder (set TRUE) for access to the top. If no ladder is provided then value is set FALSE."
            },
            "HasVisualIndicator": {
                "description": "Indication of whether the tank is provided with a visual indicator (set TRUE) that shows the water level in the tank. If no visual indicator is provided then value is set FALSE."
            },
            "TankComposition": {
                "description": "Defines the level of element composition where:"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgServiceElements/Pset_FlowStorageDeviceTank.xml"
    },
    "Pset_FlowTerminalAirTerminal": {
        "properties": {
            "AirflowType": {
                "description": "Enumeration defining the functional type of air flow through the terminal."
            },
            "Location": {
                "description": "Location  (a single type of diffuser can be used for multiple locations); high means close to ceiling."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgServiceElements/Pset_FlowTerminalAirTerminal.xml"
    },
    "Pset_FurnitureTypeChair": {
        "properties": {
            "HighestSeatingHeight": {
                "description": "The value of seating height of high level if the chair height is adjustable."
            },
            "LowestSeatingHeight": {
                "description": "The value of seating height of low level if the chair height is adjustable."
            },
            "SeatingHeight": {
                "description": "The value of seating height if the chair height is not adjustable."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedFacilitiesElements/Pset_FurnitureTypeChair.xml"
    },
    "Pset_FurnitureTypeCommon": {
        "properties": {
            "Description": {
                "description": "Specific description of this type of furniture."
            },
            "MainColor": {
                "description": "The main color of the furniture of this type"
            },
            "NominalDepth": {
                "description": "The nominal depth of the furniture of this type. The size information is provided in addition to the shape representation and the geometric parameters used within. In cases of inconsistency between the geometric parameters and the size properties, provided in the attached property set, the geometric parameters take precedence."
            },
            "NominalHeight": {
                "description": "The nominal height of the furniture of this type. The size information is provided in addition to the shape representation and the geometric parameters used within. In cases of inconsistency between the geometric parameters and the size properties, provided in the attached property set, the geometric parameters take precedence."
            },
            "NominalLength": {
                "description": "The nominal length of the furniture of this type. The size information is provided in addition to the shape representation and the geometric parameters used within. In cases of inconsistency between the geometric parameters and the size properties, provided in the attached property set, the geometric parameters take precedence."
            },
            "Style": {
                "description": "Description of the furniture style"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedFacilitiesElements/Pset_FurnitureTypeCommon.xml"
    },
    "Pset_FurnitureTypeDesk": {
        "properties": {
            "WorksurfaceArea": {
                "description": "The value of the work surface area of the desk."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedFacilitiesElements/Pset_FurnitureTypeDesk.xml"
    },
    "Pset_FurnitureTypeFileCabinet": {
        "properties": {
            "WithLock": {
                "description": "Indicates whether the file cabinet is lockable (= TRUE) or not (= FALSE)."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedFacilitiesElements/Pset_FurnitureTypeFileCabinet.xml"
    },
    "Pset_FurnitureTypeTable": {
        "properties": {
            "NumberOfChairs": {
                "description": "Maximum number of chairs that can fit with the table for normal use."
            },
            "WorksurfaceArea": {
                "description": "The value of the work surface area of the desk.."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedFacilitiesElements/Pset_FurnitureTypeTable.xml"
    },
    "Pset_GasTerminalPHistory": {
        "properties": {
            "GasFlowRate": {
                "description": "The volumetric flowrate of gas to the gas terminal."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_GasTerminalPHistory.xml"
    },
    "Pset_GasTerminalTypeCommon": {
        "properties": {
            "GasFlowRateRange": {
                "description": "Gas volumetric flowrate within which the gas  terminal is designed to operate."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_GasTerminalTypeCommon.xml"
    },
    "Pset_GasTerminalTypeGasAppliance": {
        "properties": {
            "FlueType": {
                "description": "Defines the types of flue that may be specified for connection to gas appliances where:"
            },
            "GasApplianceType": {
                "description": "Selection of the type of gas appliance from the enumerated list of types."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_GasTerminalTypeGasAppliance.xml"
    },
    "Pset_GasTerminalTypeGasBurner": {
        "properties": {
            "GasBurnerType": {
                "description": "Selection of the type of gas burner from the enumerated list of types"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_GasTerminalTypeGasBurner.xml"
    },
    "Pset_HeatExchangerTypeCommon": {
        "properties": {
            "Arrangement": {
                "description": "Defines the basic flow arrangements for the heat exchanger: COUNTERFLOW: Counterflow heat exchanger arrangement.  CROSSFLOW: Crossflow heat exchanger arrangement.  PARALLELFLOW: Parallel flow heat exchanger arrangement.  MULTIPASS: Multipass flow heat exchanger arrangement.  OTHER: Other type of heat exchanger flow arrangement not defined above."
            },
            "ShellMaterial": {
                "description": "Material used to construct the shell of the heat exchanger."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_HeatExchangerTypeCommon.xml"
    },
    "Pset_HeatExchangerTypePlate": {
        "properties": {
            "NumberOfPlates": {
                "description": "Number of plates used by the plate heat exchanger."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_HeatExchangerTypePlate.xml"
    },
    "Pset_HumidifierPHistory": {
        "properties": {
            "AirPressureDropCurve": {
                "description": "Air pressure drop versus air-flow rate."
            },
            "AtmosphericPressure": {
                "description": "Ambient atmospheric pressure."
            },
            "SaturationEfficiency": {
                "description": "Saturation efficiency: Ratio of leaving air absolute humidity to the maximum absolute humidity."
            },
            "SaturationEfficiencyCurve": {
                "description": "Saturation efficiency as a function of the air flow rate."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_HumidifierPHistory.xml"
    },
    "Pset_HumidifierTypeCommon": {
        "properties": {
            "Application": {
                "description": "Humidifier application. Fixed: Humidifier installed in a ducted flow distribution system. Portable: Humidifier is not installed in a ducted flow distribution system."
            },
            "InternalControl": {
                "description": "Internal modulation control."
            },
            "NominalAirFlowRate": {
                "description": "Nominal rate of air flow into which water vapor is added."
            },
            "NominalMoistureGain": {
                "description": "Nominal rate of water vapor added into the airstream."
            },
            "WaterRequirement": {
                "description": "Make-up water requirement."
            },
            "Weight": {
                "description": "The weight of the humidifier."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_HumidifierTypeCommon.xml"
    },
    "Pset_LampTypeCommon": {
        "properties": {
            "ColorAppearance": {
                "description": "In both the DIN and CIE standards, artificial light sources are classified in terms of their color appearance. To the human eye they all appear to be white; the difference can only be detected by direct comparison. Visual performance is not directly affected by differences in color appearance."
            },
            "ColorRenderingIndex": {
                "description": "The CRI indicates how well a light source renders eight standard colors compared to perfect reference lamp with the same color temperature. The CRI scale ranges from 1 to 100, with 100 representing perfect rendering properties."
            },
            "ColorTemperature": {
                "description": "The color temperature of any source of radiation is defined as the temperature (in Kelvin) of a black-body or Planckian radiator whose radiation has the same chromaticity as the source of radiation. Often the values are only approximate color temperatures as the black-body radiator cannot emit radiation of every chromaticity value. The color temperatures of the commonest artificial light sources range from less than 3000K (warm white) to 4000K (intermediate) and over 5000K (daylight)."
            },
            "ContributedLuminousFlux": {
                "description": "Luminous flux is a photometric measure of radiant flux, i.e. the volume of light emitted from a light source. Luminous flux is measured either for the interior as a whole or for a part of the interior (partial luminous flux for a solid angle). All other photometric parameters are derivatives of luminous flux. Luminous flux is measured in lumens (lm). The luminous flux is given as a nominal value for each lamp."
            },
            "LampBallastType": {
                "description": "The type of ballast used to stabilise gas discharge by limiting the current during operation and to deliver the necessary striking voltage for starting. Ballasts are needed to operate Discharge Lamps such as Fluorescent, Compact Fluorescent, High-pressure Mercury, Metal Halide and High-pressure Sodium Lamps.  Magnetic ballasts are chokes which limit the current passing through a lamp connected in series on the principle of self-induction. The resultant current and power are decisive for the efficient operation of the lamp. A specially designed ballast is required for every type of lamp to comply with lamp rating in terms of Luminous Flux, Color Appearance and service life. The two types of magnetic ballasts for fluorescent lamps are KVG Conventional   (EC-A series) and VVG Low-loss ballasts (EC-B series). Low-loss ballasts have a higher efficiency, which means reduced ballast losses and a lower thermal load. Electronic ballasts are used to run fluorescent lamps at high frequencies (approx. 35 - 40 kHz)."
            },
            "LampCompensationType": {
                "description": "Identifies the form of compensation used for power factor correction and radio suppression."
            },
            "LampMaintenanceFactor": {
                "description": "Non recoverable losses of luminous flux of a lamp due to lamp depreciation; i.e. the decreasing of light output of a luminaire due to aging and dirt."
            },
            "LightEmitterNominalPower": {
                "description": "Light emitter nominal power."
            },
            "Spectrum": {
                "description": "The spectrum of radiation describes its composition with regard to wavelength. Light, for example, as the portion of electromagnetic radiation that is visible to the human eye, is radiation with wavelengths in the range of approx. 380 to 780 nm (1 nm = 10 m). The corresponding range of colours varies from violet to indigo, blue, green, yellow, orange, and red. These colours form a continuous spectrum, in which the various spectral sectors merge into each other."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcElectricalDomain/Pset_LampTypeCommon.xml"
    },
    "Pset_LightFixtureTypeCommon": {
        "properties": {
            "ArticleNumber": {
                "description": "The article number."
            },
            "LightFixtureMountingType": {
                "description": "A list of the available types of mounting for light fixtures from which that required may be selected."
            },
            "LightFixturePlacingType": {
                "description": "A list of the available types of placing specification for light fixtures from which that required may be selected."
            },
            "MaintenanceFactor": {
                "description": "Maintenance factor."
            },
            "ManufacturersSpecificInformation": {
                "description": "Manufacturer specific information."
            },
            "NumberOfSources": {
                "description": "Number of sources"
            },
            "TotalWattage": {
                "description": "Wattage on whole lightfitting device with all sources intact."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcElectricalDomain/Pset_LightFixtureTypeCommon.xml"
    },
    "Pset_LightFixtureTypeExitSign": {
        "properties": {
            "Addressablility": {
                "description": "The type of addressability."
            },
            "BackupSupplySystem": {
                "description": "The type of backup supply system."
            },
            "MinimumTextHeight": {
                "description": "The minlimum height of this type."
            },
            "PictogramEscapeDirection": {
                "description": "The direction of escape pictogram."
            },
            "SelfTestFunction": {
                "description": "The type of self test function."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcElectricalDomain/Pset_LightFixtureTypeExitSign.xml"
    },
    "Pset_LightFixtureTypeThermal": {
        "properties": {
            "MaximumPlenumSensibleLoad": {
                "description": "Maximum or Peak sensible thermal load contributed to the conditioned space by the light fixture."
            },
            "MaximumSpaceSensibleLoad": {
                "description": "Maximum or Peak sensible thermal load contributed to return air plenum by the light fixture."
            },
            "SensibleLoadToRadiant": {
                "description": "Percent of sensible thermal load to radiant heat."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcElectricalDomain/Pset_LightFixtureTypeThermal.xml"
    },
    "Pset_ManufacturerOccurrence": {
        "properties": {
            "AcquisitionDate": {
                "description": "The date that the manufactured item was purchased."
            },
            "BarCode": {
                "description": "The identity of the bar code given to an occurrence of the product"
            },
            "BatchReference": {
                "description": "The identity of the batch reference from which an occurrence of a product is taken."
            },
            "SerialNumber": {
                "description": "The serial number assigned to an occurrence of a product"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedFacilitiesElements/Pset_ManufacturerOccurrence.xml"
    },
    "Pset_ManufacturerTypeInformation": {
        "properties": {
            "ArticleNumber": {
                "description": "Article number or reference that may be applied to a product according to a standard scheme for article number definition (e.g. UN, EAN)"
            },
            "Manufacturer": {
                "description": "The organization that manufactured and/or assembled the item."
            },
            "ModelLabel": {
                "description": "The model number and/or unit designator assigned by the manufacturer of the manufactured item."
            },
            "ModelReference": {
                "description": "The name of the manufactured item as used by the manufacturer."
            },
            "ProductionYear": {
                "description": "The year of production of the manufactured item."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedFacilitiesElements/Pset_ManufacturerTypeInformation.xml"
    },
    "Pset_MemberCommon": {
        "properties": {
            "FireRating": {
                "description": "Fire rating for this object. It is given according to the national fire safety classification."
            },
            "IsExternal": {
                "description": "Indication whether the element is designed for use in the exterior (TRUE) or not (FALSE). If (TRUE) it is an external element and faces the outside of the building."
            },
            "LoadBearing": {
                "description": "Indicates whether the object is intended to carry loads (TRUE) or not (FALSE)."
            },
            "Reference": {
                "description": "Reference ID for this specified type in this project (e.g. type 'A-1')"
            },
            "Slope": {
                "description": "Slope angle - relative to horizontal (0.0 degrees). The shape information is provided in addition to the shape representation and the geometric parameters used within. In cases of inconsistency between the geometric parameters and the shape properties, provided in the attached property, the geometric parameters take precedence."
            },
            "Span": {
                "description": "Clear span for this object. The shape information is provided in addition to the shape representation and the geometric parameters used within. In cases of inconsistency between the geometric parameters and the shape properties, provided in the attached property, the geometric parameters take precedence."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgElements/Pset_MemberCommon.xml"
    },
    "Pset_MultiStateInput": {
        "properties": {
            "AlarmValues": {
                "description": "Specifies any states the present value must equal before an EventEnable shall occur. Upper limit of the list is equal to the NumberOfStates."
            },
            "EventEnable": {
                "description": "Enumeration that defines the type of event enabling"
            },
            "NotifyType": {
                "description": "Enumeration that defines the notification type"
            },
            "NumberOfStates": {
                "description": "Number of states for the multi-state Input."
            },
            "StateText": {
                "description": "String values to identify the state condition. Upper limit of the list is equal to the NumberOfStates."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcBuildingControlsDomain/Pset_MultiStateInput.xml"
    },
    "Pset_MultiStateOutput": {
        "properties": {
            "AlarmValues": {
                "description": "Specifies any states the present value must equal before an EventEnable shall occur. Upper limit of the list is equal to the NumberOfStates."
            },
            "EventEnable": {
                "description": "Enumeration that defines the type of event enabling"
            },
            "NotifyType": {
                "description": "Enumeration that defines the notification type"
            },
            "NumberOfStates": {
                "description": "Number of states for the multi-state Input."
            },
            "StateText": {
                "description": "String values to identify the state condition. Upper limit of the list is equal to the NumberOfStates."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcBuildingControlsDomain/Pset_MultiStateOutput.xml"
    },
    "Pset_OpeningElementCommon": {
        "properties": {
            "FireExit": {
                "description": "Indication whether this object is designed to serve as an exit in the case of fire (TRUE) or not (FALSE). Here whether the space (in case of e.g., a corridor) is designed to serve as an exit space, e.g., for fire escape purposes."
            },
            "ParallelJambs": {
                "description": "Indicated, whether the jambs of an opening in a curved building element are intended to be parallel (TRUE) or are radial (FALSE). Radial means, that the extension of the jambs are rays through the axis of the revolution forming the curved building element."
            },
            "ProtectedOpening": {
                "description": "Indication whether the opening is considered to be protected under fire safety considerations. If (TRUE) it counts as a protected opening under the applicable building code, (FALSE) otherwise."
            },
            "Purpose": {
                "description": "Indication of the purpose for that opening, e.g. 'ventilation', 'access', etc."
            },
            "Reference": {
                "description": "Reference ID for this specified type in this project (e.g. type 'A-1')"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcProductExtension/Pset_OpeningElementCommon.xml"
    },
    "Pset_OutletTypeCommon": {
        "properties": {
            "IsPluggableOutlet": {
                "description": "Indication of whether the outlet accepts a loose plug connection (= TRUE) or whether it is directly connected (= FALSE) or whether the form of connection has not yet been determined (= UNKNOWN)"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcElectricalDomain/Pset_OutletTypeCommon.xml"
    },
    "Pset_OutsideDesignCriteria": {
        "properties": {
            "BuildingThermalExposure": {
                "description": "The thermal exposure expected by the building based on surrounding site conditions."
            },
            "CoolingDesignDay": {
                "description": "The month, day  and time that has been selected for the cooling design calculations."
            },
            "CoolingDryBulb": {
                "description": "Outside dry bulb temperature for cooling design"
            },
            "CoolingWetBulb": {
                "description": "Outside wet bulb temperature for cooling design"
            },
            "HeatingDesignDay": {
                "description": "The month, day and time that has been selected for the heating design calculations."
            },
            "HeatingDryBulb": {
                "description": "Outside dry bulb temperature for heating design"
            },
            "HeatingWetBulb": {
                "description": "Outside wet bulb temperature for heating design"
            },
            "PrevailingWindDirection": {
                "description": "The prevailing wind angle direction measured from True North (0 degrees) in a clockwise direction."
            },
            "PrevailingWindVelocity": {
                "description": "The design wind velocity coming from the direction specified by the PrevailingWindDirection attribute."
            },
            "WeatherDataDate": {
                "description": "The date for which the weather data was gathered."
            },
            "WeatherDataStation": {
                "description": "The site weather data station description or reference to the data source from which weather data was obtained for use in calculations."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgServiceElements/Pset_OutsideDesignCriteria.xml"
    },
    "Pset_PackingInstructions": {
        "properties": {
            "ContainerMaterial": {
                "description": "Special requirements for material used to contain an artefact."
            },
            "PackingCareType": {
                "description": "Identifies the predefined types of care that may be required when handling the artefact during a move where:"
            },
            "SpecialInstructions": {
                "description": "Special instructions for packing."
            },
            "WrappingMaterial": {
                "description": "Special requirements for material used to wrap an artefact."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcFacilitiesMgmtDomain/Pset_PackingInstructions.xml"
    },
    "Pset_Permit": {
        "properties": {
            "EndTime": {
                "description": "End time."
            },
            "EscortRequirement": {
                "description": "Indicates whether or not an escort is required to accompany persons carrying out a work order at or to/from the place of work (= TRUE) or not (= FALSE)."
            },
            "PermitDuration": {
                "description": "Permit duration."
            },
            "PermitType": {
                "description": "Identifies the predefined types of permits that can be granted where:"
            },
            "SpecialRequirements": {
                "description": "Any additional special requirements that need to be included in the permit to work."
            },
            "StartDate": {
                "description": "Start date."
            },
            "StartTime": {
                "description": "Start time."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcFacilitiesMgmtDomain/Pset_Permit.xml"
    },
    "Pset_PipeConnection": {
        "properties": {
            "ConnectionType": {
                "description": "The connection type between pipe segments or fittings and other segments or fittings. If the list contains only one value, then this connection type value applies to all ports. For more than one value in the list, the connection type value applies to the port that corresponds to the list index.The following suggested items should be utilized whenever possible for correlation with port enumerations: BRAZED: Brazed connection type.  COMPRESSION: Compression connection type.  FLANGED: Flanged connection type including bolts and gasket.  GLANDJOINT: Gland-joint  connection type.  FLEXIBLEBOLTEDGLANDJOINT: Flexible bolted gland-joint  connection type.  FLEXIBLEBOLTEDGLANDJOINTWITHANODEENDCAP: Flexible bolted gland-joint with anode end-cap connection type. GROOVED: Grooved connection type.  SOLDERED: Soldered connection type.  SOLDERED_FEMALE: Female-soldered connection type.  SOLDERED_MALE: Male-soldered connection type.  SWEDGE: Swedge connection type. THREADED: Threaded connection type.  THREADED_FEMALE: Female-threaded connection type.  THREADED_MALE: Male-threaded connection type.  WELDED: Welded connection type.  WELDED_BUTT: Butt-welded connection type.  WELDED_BRANCH: Branch-welded connection type.  WELDED_FLANGE: Flange-welded connection type.  NONE: There is no connection. NOTDEFINED: Undefined connection type."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_PipeConnection.xml"
    },
    "Pset_PipeConnectionFlanged": {
        "properties": {
            "BoltSize": {
                "description": "Size of the bolts securing the flange"
            },
            "BoltholePitch": {
                "description": "Diameter of the circle along which the boltholes are placed"
            },
            "BoreSize": {
                "description": "The nominal bore of the pipe flange"
            },
            "FlangeDiameter": {
                "description": "Overall diameter of the flange"
            },
            "FlangeStandard": {
                "description": "Designation of the standard describing the flange table"
            },
            "FlangeTable": {
                "description": "Designation of the standard table to which the flange conforms"
            },
            "FlangeThickness": {
                "description": "Thickness of the material from which the pipe bend is constructed"
            },
            "Material": {
                "description": "Material from which the pipe flange is constructed"
            },
            "NumberOfBoltholes": {
                "description": "Number of boltholes in the flange"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_PipeConnectionFlanged.xml"
    },
    "Pset_PipeFittingPHistory": {
        "properties": {
            "FlowrateLeakage": {
                "description": "Leakage flowrate versus pressure difference."
            },
            "LossCoefficient": {
                "description": "Dimensionless loss coefficient used for calculating fluid resistance representing the ratio of total pressure loss to velocity pressure at a referenced cross-section."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_PipeFittingPHistory.xml"
    },
    "Pset_PipeFittingTypeCommon": {
        "properties": {
            "EndStyleTreatment": {
                "description": "The end-style treatment of the pipe fitting as made available from the manufacturer. If the list contains only one value, then this end-style applies to all ports. For more than one value in the list, the end-style value applies to the port that corresponds to the list index.The following suggested items should be utilized whenever possible for correlation with port enumerations: FLANGED: Flanged.  GROOVED: Grooved.  THREADED: Threaded.  NONE: No end-style has been applied. NOTDEFINED: Undefined end-style type."
            },
            "FittingLossFactor": {
                "description": "A factor that determines the pressure loss due to friction through the fitting."
            },
            "InnerDiameter": {
                "description": "The actual inner diameter of the pipe. Refer to NominalDiameter for comments about interpretation of multiple items in the list."
            },
            "Material": {
                "description": "The pipe fitting material."
            },
            "NominalDiameter": {
                "description": "The nominal diameter of the pipe fitting. If the list contains only one value, then this nominal diameter applies to all ports. For more than value in the list, the nominal diameter value applies to the port that corresponds to the list index."
            },
            "OuterDiameter": {
                "description": "The actual outer diameter of the pipe. Refer to NominalDiameter for comments about interpretation of multiple items in the list."
            },
            "PressureClass": {
                "description": "The test or rated pressure classification of the fitting."
            },
            "PressureRange": {
                "description": "Allowable maximum and minimum working pressure (relative to ambient pressure)."
            },
            "SubType": {
                "description": "Subtype of the pipe fitting..The following suggested items should be utilized whenever possible for consistency across applications: BEND_15DEGREE: Changes the direction of flow through 15 degrees.  BEND_22_5DEGREE: Changes the direction of flow through 22.5 degrees.  BEND_25DEGREE: Changes the direction of flow through 25 degrees.  BEND_30DEGREE: Changes the direction of flow through 30 degrees.  BEND_45DEGREE: Changes the direction of flow through 45 degrees.  BEND_67DEGREE: Changes the direction of flow through 67 degrees.  BEND_76DEGREE: Changes the direction of flow through 76 degrees.  BEND_87_5DEGREE: Changes the direction of flow through 87.5 degrees.  BEND_90DEGREE: Changes the direction of flow through 90 degrees.  BEND_135DEGREE: Changes the direction of flow through 135 degrees.  BEND_180DEGREE: Changes the direction of flow through 180 degrees.  JUNCTION_CROSS_SQUARE: Branch fitting with two opposing branches that are swept in the direction of the main flow.  JUNCTION_CROSS_SWEEP: Branch fitting with two swept opposing branches at right angles to the main flow.  JUNCTION_TEE_SQUARE: Branch fitting in which the branch is at an angle of 90 degrees to the main pipe.  JUNCTION_TEE_SWEEP: Branch fitting in which the branch is curved through 90 degrees to join a main pipe tangentially.  JUNCTION_TEE_TWINBEND: Symmetrical pipe fitting in which two short radius bends curve through 90 degree to form a single pipe.  +I1JUNCTION_TEE_TWINELBOW: Symmetrical pipe fitting in which two elbows curve through 90 degree to form a single pipe.  JUNCTION_TEE_Y: Branch fitting in the shape of a letter Y.  OBSTRUCTION_CAP: Device fixed onto the end of a pipe or pipe fitting to close it.  OBSTRUCTION_PLUG: Device fixed into the end of a pipe or pipe fitting to close it.  OTHER: Other fitting subtype. NOTDEFINED: The fitting subtype is not defined."
            },
            "TemperatureRange": {
                "description": "Allowable maximum and minimum temperature."
            },
            "UnitWeight": {
                "description": "Weight per unit length."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_PipeFittingTypeCommon.xml"
    },
    "Pset_PipeSegmentPHistory": {
        "properties": {
            "FluidFlowLeakage": {
                "description": "Volumetric leakage flow rate."
            },
            "LeakageCurve": {
                "description": "Leakage per unit length curve versus working pressure."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_PipeSegmentPHistory.xml"
    },
    "Pset_PipeSegmentTypeCommon": {
        "properties": {
            "EndStyleTreatment": {
                "description": "The end-style treatment of the pipe segment as made available from the manufacturer. If the list contains only one value, then this end-style applies to all ports. For more than one value in the list, the end-style value applies to the port that corresponds to the list index.The following suggested items should be utilized whenever possible for correlation with port enumerations: FLANGED: Flanged.  GROOVED: Grooved.  THREADED: Threaded.  NONE: No end-style has been applied. NOTDEFINED: Undefined end-style type."
            },
            "InnerDiameter": {
                "description": "The actual inner diameter of the pipe. Refer to NominalDiameter for comments about interpretation of multiple items in the list."
            },
            "Material": {
                "description": "The pipe fitting material."
            },
            "NominalDiameter": {
                "description": "The nominal diameter of the pipe segment. If the list contains only one value, then this nominal diameter applies to all ports. For more than value in the list, the nominal diameter value applies to the port that corresponds to the list index."
            },
            "OuterDiameter": {
                "description": "The actual outer diameter of the pipe. Refer to NominalDiameter for comments about interpretation of multiple items in the list."
            },
            "PressureRange": {
                "description": "Allowable maximum and minimum working pressure (relative to ambient pressure)."
            },
            "TemperatureRange": {
                "description": "Allowable maximum and minimum temperature."
            },
            "UnitWeight": {
                "description": "Weight per unit length."
            },
            "WorkingPressure": {
                "description": "Working pressure."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_PipeSegmentTypeCommon.xml"
    },
    "Pset_PipeSegmentTypeGutter": {
        "properties": {
            "FlowRating": {
                "description": "Actual flow capacity for the gutter. Value of 0.00 means this value has not been set."
            },
            "Slope": {
                "description": "Angle of the gutter to allow for drainage"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_PipeSegmentTypeGutter.xml"
    },
    "Pset_PlateCommon": {
        "properties": {
            "AcousticRating": {
                "description": "Acoustic rating for this object. It is giving according to the national building code. It indicates the sound transmission resistance of this object by an index ration (instead of providing full sound absorbtion values)."
            },
            "FireRating": {
                "description": "Fire rating for this object. It is given according to the national fire safety classification."
            },
            "IsExternal": {
                "description": "Indication whether the element is designed for use in the exterior (TRUE) or not (FALSE). If (TRUE) it is an external element and faces the outside of the building."
            },
            "LoadBearing": {
                "description": "Indicates whether the object is intended to carry loads (TRUE) or not (FALSE)."
            },
            "Reference": {
                "description": "Reference ID for this specified type in this project (e.g. type 'A-1')"
            },
            "ThermalTransmittance": {
                "description": "Thermal transmittance coefficient (U-Value) of a material. It applies to the total door construction."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgElements/Pset_PlateCommon.xml"
    },
    "Pset_ProductRequirements": {
        "properties": {
            "Category": {
                "description": "A reference to a classification of the degree of aggregation or granularity of topic data such as regional, local etc."
            },
            "Classification": {
                "description": "A reference to a classification of the topic"
            },
            "DemandImportanceValue": {
                "description": "Importance of the topic relative to the importance of other topics."
            },
            "DemandThresholdValue": {
                "description": "Value of the subject matter above or below which a special significance is attached."
            },
            "DemandValue": {
                "description": "Value of the subject matter as determined using an agreed scale for what is required."
            },
            "GapValue": {
                "description": "Difference determined between the topic demand value and the topic supply evaluation value."
            },
            "GapValueWeighted": {
                "description": "Difference determined between the topic demand value and the topic supply evaluation value, weighted for topic demand importance value."
            },
            "GroupName": {
                "description": "Name of grouping of topics."
            },
            "Name": {
                "description": "Subject matter for which a value is to be reported."
            },
            "SupplyEvaluationValue": {
                "description": "Value of the subject matter as determined using an agreed scale for what is provided, or capable of being provided."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcKernel/Pset_ProductRequirements.xml"
    },
    "Pset_ProjectCommon": {
        "properties": {
            "BuildingPermitId": {
                "description": "The building permit identifier for the written authorization required by building authorities before construction on a specific project can begin."
            },
            "ConstructionMode": {
                "description": "The type of construction action the project deals with, e.g. new construction, renovation, refurbishment, etc."
            },
            "GrossAreaPlanned": {
                "description": "Total planned area for the project.  Used for programming the project"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcKernel/Pset_ProjectCommon.xml"
    },
    "Pset_ProjectOrderChangeOrder": {
        "properties": {
            "BudgetSource": {
                "description": "The budget source requested."
            },
            "ChangeDescription": {
                "description": "A general description of the change."
            },
            "ReasonForChange": {
                "description": "A description of the problem for why a change is needed."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedMgmtElements/Pset_ProjectOrderChangeOrder.xml"
    },
    "Pset_ProjectOrderMaintenanceWorkOrder": {
        "properties": {
            "ContractualType": {
                "description": "The contractual type of the work."
            },
            "FaultPriorityType": {
                "description": "Identifies the predefined types of priority that can be assigned from which the type may be set where:"
            },
            "IfNotAccomplished": {
                "description": "Comments if the job is not accomplished."
            },
            "LocationPriorityType": {
                "description": "Identifies the predefined types of priority that can be assigned from which the type may be set where:"
            },
            "LongJobDescription": {
                "description": "Description of the job requested."
            },
            "MaintenaceType": {
                "description": "Identifies the predefined types of maintenance that can be done from which the type that generates the maintenance work order may be set where:"
            },
            "ProductDescription": {
                "description": "A textual description of the products that require the work."
            },
            "ScheduledFrequency": {
                "description": "The period of time between expected instantiations of a work order that may have been predefined."
            },
            "ShortJobDescription": {
                "description": "Short description of the job requested."
            },
            "WorkTypeRequested": {
                "description": "Work type requested in circumstances where there are categorizations of types of work task. It could be used to identify a remedial task, minor work task, electrical task etc."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedMgmtElements/Pset_ProjectOrderMaintenanceWorkOrder.xml"
    },
    "Pset_ProjectOrderMoveOrder": {
        "properties": {
            "MoveDescription": {
                "description": "A textual description of the move required."
            },
            "SpecialInstructions": {
                "description": "Special instructions that affect the move."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedMgmtElements/Pset_ProjectOrderMoveOrder.xml"
    },
    "Pset_ProjectOrderPurchaseOrder": {
        "properties": {
            "IsFOB": {
                "description": "Indication of whether contents of the purchase order are delivered 'Free on Board' (= True) or not (= False)."
            },
            "ShipMethod": {
                "description": "Method of shipping that will be used for goods or services."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedMgmtElements/Pset_ProjectOrderPurchaseOrder.xml"
    },
    "Pset_ProjectOrderWorkOrder": {
        "properties": {
            "ContractualType": {
                "description": "The contractual type of the work."
            },
            "IfNotAccomplished": {
                "description": "Comments if the job is not accomplished."
            },
            "LongJobDescription": {
                "description": "Description of the job requested."
            },
            "ProductDescription": {
                "description": "A textual description of the products that require the work."
            },
            "ShortJobDescription": {
                "description": "Short description of the job requested."
            },
            "WorkTypeRequested": {
                "description": "Work type requested in circumstances where there are categorizations of types of work task. It could be used to identify a remedial task, minor work task, electrical task etc."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedMgmtElements/Pset_ProjectOrderWorkOrder.xml"
    },
    "Pset_ProjectionElementShadingDevicePHistory": {
        "properties": {
            "Azimuth": {
                "description": "The azimuth of the outward normal for the outward or upward facing surface."
            },
            "TiltAngle": {
                "description": "The angle of tilt defined in the plane perpendicular to the extrusion axis (X-Axis of the local placement). The angle shall be measured from the orientation of the Z-Axis in the local placement."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_ProjectionElementShadingDevicePHistory.xml"
    },
    "Pset_PropertyAgreement": {
        "properties": {
            "AgreementType": {
                "description": "Identifies the predefined types of property agreement from which the type required may be set."
            },
            "CommencementDate": {
                "description": "Date on which the agreement commences"
            },
            "ConditionCommencement": {
                "description": "Condition of property provided on commencement of the agreement e.g. cold shell, warm lit shell, broom clean, turn-key"
            },
            "ConditionTermination": {
                "description": "Condition of property required on termination of the agreement e.g. cold shell, warm lit shell, broom clean, turn-key"
            },
            "Duration": {
                "description": "The period of time for the lease. Note that values should be given in year/day/month and not in hour/minute/second."
            },
            "Identifier": {
                "description": "The identifier assigned to the agreement for the purposes of tracking."
            },
            "Options": {
                "description": "A statement of the options available in the agreement"
            },
            "PropertyName": {
                "description": "Addressing details of the property as stated within the agreement"
            },
            "Restrictions": {
                "description": "Restrictions that may be placed by a  competent authority"
            },
            "TerminationDate": {
                "description": "Date on which the agreement terminates"
            },
            "Version": {
                "description": "The version number of the agreement that is identified"
            },
            "VersionDate": {
                "description": "The date on which the version of the agreement became applicable"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedFacilitiesElements/Pset_PropertyAgreement.xml"
    },
    "Pset_ProtectiveDeviceTypeCircuitBreaker": {
        "properties": {
            "CircuitBreakerType": {
                "description": "A list of the available types of circuit breaker from which that required may be selected where:"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcElectricalDomain/Pset_ProtectiveDeviceTypeCircuitBreaker.xml"
    },
    "Pset_ProtectiveDeviceTypeCommon": {
        "properties": {
            "CharacteristicTripCurve": {
                "description": "A curve giving the time, e.g. prearcing time or operating time, as a function of the protective current under stated conditions of operation."
            },
            "CutOffCurrent": {
                "description": "The maximum instantaneous value of current attained during the breaking operation of a protective device. (IEC 441-17-12)"
            },
            "LimitingTerminalSize": {
                "description": "The maximum terminal size capacity of the device."
            },
            "MaximumRatedVoltage": {
                "description": "Maximum rated voltage"
            },
            "ProtectiveTagType": {
                "description": "The breaking capacity value of the device. Note: This may be expressed as a code or a value depending on standard and/or source."
            },
            "RatedShortCircuitCurrent": {
                "description": "An overcurrent resulting from a fault of negligible impedance between live conductors having a difference in potential under normal operating conditions. (IEC 826-05-08)"
            },
            "StandardUsed": {
                "description": "The electrical standard used as a reference when preparing data for the device."
            },
            "SwitchingDuty": {
                "description": "The maximum number of operations for the device at the rated making and breaking capacity."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcElectricalDomain/Pset_ProtectiveDeviceTypeCommon.xml"
    },
    "Pset_ProtectiveDeviceTypeEarthFailureDevice": {
        "properties": {
            "EarthFailureDeviceType": {
                "description": "A list of the available types of circuit breaker from which that required may be selected where:"
            },
            "Sensitivity": {
                "description": "Current leakage to an unwanted leading path during normal operation (IEC 151-14-49)"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcElectricalDomain/Pset_ProtectiveDeviceTypeEarthFailureDevice.xml"
    },
    "Pset_ProtectiveDeviceTypeFuseDisconnector": {
        "properties": {
            "FuseDisconnectorType": {
                "description": "A list of the available types of fuse disconnector from which that required may be selected where:"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcElectricalDomain/Pset_ProtectiveDeviceTypeFuseDisconnector.xml"
    },
    "Pset_ProtectiveDeviceTypeResidualCurrentCircuitBreaker": {
        "properties": {
            "Sensitivity": {
                "description": "Current leakage to an unwanted leading path during normal operation (IEC 151-14-49)"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcElectricalDomain/Pset_ProtectiveDeviceTypeResidualCurrentCircuitBreaker.xml"
    },
    "Pset_ProtectiveDeviceTypeResidualCurrentSwitch": {
        "properties": {
            "Sensitivity": {
                "description": "Current leakage to an unwanted leading path during normal operation (IEC 151-14-49)"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcElectricalDomain/Pset_ProtectiveDeviceTypeResidualCurrentSwitch.xml"
    },
    "Pset_ProtectiveDeviceTypeVaristor": {
        "properties": {
            "VaristorType": {
                "description": "A list of the available types of varistor  from which that required may be selected."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcElectricalDomain/Pset_ProtectiveDeviceTypeVaristor.xml"
    },
    "Pset_PumpPHistory": {
        "properties": {
            "Flowrate": {
                "description": "The actual operational fluid flowrate."
            },
            "MechanicalEfficiency": {
                "description": "The pumps operational mechanical efficiency."
            },
            "OverallEfficiency": {
                "description": "The pump and motor overall operational efficiency."
            },
            "Power": {
                "description": "The actual power consumption of the pump."
            },
            "PressureRise": {
                "description": "The developed pressure."
            },
            "RotationSpeed": {
                "description": "Pump rotational speed."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_PumpPHistory.xml"
    },
    "Pset_PumpTypeCommon": {
        "properties": {
            "CasingMaterial": {
                "description": "Material from which the casing of the pump is constructed"
            },
            "ConnectionSize": {
                "description": "The connection size of the to and from the pump"
            },
            "FlowRateRange": {
                "description": "Allowable range of volume of fluid being pumped against the resistance specified."
            },
            "FlowResistanceRange": {
                "description": "Allowable range of frictional resistance against which the fluid is being pumped"
            },
            "ImpellerMaterial": {
                "description": "Material from which the impeller of the pump is constructed. In the case of a positive displacement pump, the piston acts as the impeller"
            },
            "ImpellerSealMaterial": {
                "description": "Material from which the impeller shaft seal of the pump is constructed."
            },
            "NetPositiveSuctionHead": {
                "description": "Minimum liquid pressure at the pump inlet to prevent cavitation."
            },
            "NominalRotationSpeed": {
                "description": "Pump rotational speed under nominal conditions."
            },
            "TemperatureRange": {
                "description": "Allowable operational range of the fluid temperature."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_PumpTypeCommon.xml"
    },
    "Pset_QuantityTakeOff": {
        "properties": {
            "LayerQuantity": {
                "children": {
                    "LocalContext": {
                        "description": "Local context information for the take-off quantity, if multiple information items are passed, then the property shall be indexed, e.g. LocalContext1, LocalContext2, \u2026"
                    },
                    "MaterialLayer": {
                        "description": "Indication of the material layer (e.g. of a wall or slab) to which the quantity information belongs to)"
                    }
                },
                "description": "Quantity take-off information specific to a single layer of the element,  if multiple layer information is passed, then the property shall be indexed, e.g. LayerQuantity1, ayerQuantity2, \u2026"
            },
            "LocalContext": {
                "description": "Local context information for the take-off quantity, if multiple information items are passed, then the property shall be indexed, e.g. LocalContext1, LocalContext2, \u2026"
            },
            "Reference": {
                "description": "Reference ID for this specified type of quantity, e.g. linking back to a macro name, etc."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcProductExtension/Pset_QuantityTakeOff.xml"
    },
    "Pset_RailingCommon": {
        "properties": {
            "Diameter": {
                "description": "Diameter of the object. It is the diameter of the handrail of the railing. The size information is provided in addition to the shape representation and the geometric parameters used within. In cases of inconsistency between the geometric parameters and the size properties, provided in the attached property set, the geometric parameters take precedence. Here the diameter of the hand or guardrail within the railing."
            },
            "Height": {
                "description": "Height of the object. It is the upper hight of the railing above the floor or stair. The size information is provided in addition to the shape representation and the geometric parameters used within. In cases of inconsistency between the geometric parameters and the size properties, provided in the attached property set, the geometric parameters take precedence."
            },
            "IsExternal": {
                "description": "Indication whether the element is designed for use in the exterior (TRUE) or not (FALSE). If (TRUE) it is an external element and faces the outside of the building."
            },
            "Reference": {
                "description": "Reference ID for this specified type in this project (e.g. type 'A-1')"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgElements/Pset_RailingCommon.xml"
    },
    "Pset_RampCommon": {
        "properties": {
            "FireExit": {
                "description": "Indication whether this object is designed to serve as an exit in the case of fire (TRUE) or not (FALSE). Here it defines an exit ramp in accordance to the national building code."
            },
            "FireRating": {
                "description": "Fire rating for this object. It is given according to the national fire safety classification."
            },
            "HandicapAccessible": {
                "description": "Indication that this object is designed to be accessible by the handicapped.  Set to (TRUE) if this ramp is rated as handicap accessible  according the local building codes, otherwise (FALSE)."
            },
            "HasNonSkidSurface": {
                "description": "Indication whether the surface finish is designed to prevent slippery (TRUE) or not (FALSE)."
            },
            "IsExternal": {
                "description": "Indication whether the element is designed for use in the exterior (TRUE) or not (FALSE). If (TRUE) it is an external element and faces the outside of the building."
            },
            "Reference": {
                "description": "Reference ID for this specified type in this project (e.g. type 'A-1')"
            },
            "RequiredHeadroom": {
                "description": "Required headroom clearance for the passageway according to the applicable building code or additional requirements."
            },
            "RequiredSlope": {
                "description": "Required sloping angle of the object  - relative to horizontal (0.0 degrees). Required maximum slope for the passageway according to the applicable building code or additional requirements"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgElements/Pset_RampCommon.xml"
    },
    "Pset_RampFlightCommon": {
        "properties": {
            "Headroom": {
                "description": "Actual headroom clearance for the passageway according to the current design.  The shape information is provided in addition to the shape representation and the geometric parameters used within. In cases of inconsistency between the geometric parameters and the shape properties, provided in the attached property, the geometric parameters take precedence."
            },
            "Reference": {
                "description": "Reference ID for this specified type in this project (e.g. type 'A-1')"
            },
            "Slope": {
                "description": "Sloping angle of the object  - relative to horizontal (0.0 degrees).  Actual maximum slope for the passageway according to the current design. The shape information is provided in addition to the shape representation and the geometric parameters used within. In cases of inconsistency between the geometric parameters and the shape properties, provided in the attached property, the geometric parameters take precedence."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgElements/Pset_RampFlightCommon.xml"
    },
    "Pset_ReinforcementBarCountOfIndependentFooting": {
        "properties": {
            "Description": {
                "description": "Description of the reinforcement."
            },
            "Reference": {
                "description": "A descriptive label for the general reinforcement type."
            },
            "XDirectionLowerBarCount": {
                "description": "The number of bars with X direction lower bar."
            },
            "XDirectionUpperBarCount": {
                "description": "The number of bars with X direction upper bar."
            },
            "YDirectionLowerBarCount": {
                "description": "The number of bars with Y direction lower bar."
            },
            "YDirectionUpperBarCount": {
                "description": "The number of bars with Y direction upper bar."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcStructuralElementsDomain/Pset_ReinforcementBarCountOfIndependentFooting.xml"
    },
    "Pset_ReinforcementBarPitchOfBeam": {
        "properties": {
            "Description": {
                "description": "Description of the reinforcement."
            },
            "Reference": {
                "description": "A descriptive label for the general reinforcement type."
            },
            "SpacingBarPitch": {
                "description": "The pitch length of the spacing bar."
            },
            "StirrupBarPitch": {
                "description": "The pitch length of the stirrup bar."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcStructuralElementsDomain/Pset_ReinforcementBarPitchOfBeam.xml"
    },
    "Pset_ReinforcementBarPitchOfColumn": {
        "properties": {
            "Description": {
                "description": "Description of the reinforcement."
            },
            "HoopBarPitch": {
                "description": "The pitch length of the hoop bar."
            },
            "Reference": {
                "description": "A descriptive label for the general reinforcement type."
            },
            "ReinforcementBarType": {
                "description": "Defines the type of the reinforcement bar."
            },
            "XDirectionTieHoopBarPitch": {
                "description": "The X direction pitch length of the tie hoop."
            },
            "XDirectionTieHoopCount": {
                "description": "The number of bars with X direction tie hoop bars."
            },
            "YDirectionTieHoopBarPitch": {
                "description": "The Y direction pitch length of the tie hoop."
            },
            "YDirectionTieHoopCount": {
                "description": "The number of bars with Y direction tie hoop bars."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcStructuralElementsDomain/Pset_ReinforcementBarPitchOfColumn.xml"
    },
    "Pset_ReinforcementBarPitchOfContinuousFooting": {
        "properties": {
            "CrossingLowerBarPitch": {
                "description": "The pitch length of the crossing lower bar."
            },
            "CrossingUpperBarPitch": {
                "description": "The pitch length of the crossing upper bar."
            },
            "Description": {
                "description": "Description of the reinforcement."
            },
            "Reference": {
                "description": "A descriptive label for the general reinforcement type."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcStructuralElementsDomain/Pset_ReinforcementBarPitchOfContinuousFooting.xml"
    },
    "Pset_ReinforcementBarPitchOfSlab": {
        "properties": {
            "Description": {
                "description": "Description of the reinforcement."
            },
            "LongInsideCenterLowerBarPitch": {
                "description": "The pitch length of the long inside center lower bar."
            },
            "LongInsideCenterTopBarPitch": {
                "description": "The pitch length of the long inside center top bar."
            },
            "LongInsideEndLowerBarPitch": {
                "description": "The pitch length of the long inside end lower bar."
            },
            "LongInsideEndTopBarPitch": {
                "description": "The pitch length of the long inside end top bar."
            },
            "LongOutsideLowerBarPitch": {
                "description": "The pitch length of the long outside lower bar."
            },
            "LongOutsideTopBarPitch": {
                "description": "The pitch length of the long outside top bar."
            },
            "Reference": {
                "description": "A descriptive label for the general reinforcement type."
            },
            "ShortInsideCenterLowerBarPitch": {
                "description": "The pitch length of the short inside center lower bar."
            },
            "ShortInsideCenterTopBarPitch": {
                "description": "The pitch length of the short inside center top bar."
            },
            "ShortInsideEndLowerBarPitch": {
                "description": "The pitch length of the short inside end lower bar."
            },
            "ShortInsideEndTopBarPitch": {
                "description": "The pitch length of the short inside end top bar."
            },
            "ShortOutsideLowerBarPitch": {
                "description": "The pitch length of the short outside lower bar."
            },
            "ShortOutsideTopBarPitch": {
                "description": "The pitch length of the short outside top bar."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcStructuralElementsDomain/Pset_ReinforcementBarPitchOfSlab.xml"
    },
    "Pset_ReinforcementBarPitchOfWall": {
        "properties": {
            "BarAllocationType": {
                "description": "Defines the type of the reinforcement bar allocation."
            },
            "Description": {
                "description": "Description of the reinforcement."
            },
            "HorizontalBarPitch": {
                "description": "The pitch length of the horizontal bar."
            },
            "Reference": {
                "description": "A descriptive label for the general reinforcement type."
            },
            "SpacingBarPitch": {
                "description": "The pitch length of the spacing bar."
            },
            "VerticalBarPitch": {
                "description": "The pitch length of the vertical bar."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcStructuralElementsDomain/Pset_ReinforcementBarPitchOfWall.xml"
    },
    "Pset_ReinforcingBarBendingsBECCommon": {
        "properties": {
            "BECBarShapeCode": {
                "description": "The bending type code for the specific bending shape as defined in the BEC standard. Note: depending on the standardized shape different combinations of following parameters a...e (f...l), TD, u, v, u1, v1, aid_x, and aid_y are used."
            },
            "BECBendingParameter_u": {
                "description": "Bar bending angle parameter u."
            },
            "BECBendingParameter_u1": {
                "description": "Bar bending angle parameter u1."
            },
            "BECBendingParameter_v": {
                "description": "Bar bending angle parameter v."
            },
            "BECBendingParameter_v1": {
                "description": "Bar bending angle parameter v1."
            },
            "BECCuttingLength": {
                "description": "Usually calculated from the sum of the partial length parameters with corrections for the bendings."
            },
            "BECRollerDiameter": {
                "description": "Diameter of bending roller."
            },
            "BECShapeAid_x": {
                "description": "Bar shape measure aid x."
            },
            "BECShapeAid_y": {
                "description": "Bar shape measure aid y."
            },
            "BECShapeParameter_a": {
                "description": "Bar shape parameter a."
            },
            "BECShapeParameter_b": {
                "description": "Bar shape parameter b."
            },
            "BECShapeParameter_c": {
                "description": "Bar shape parameter c."
            },
            "BECShapeParameter_d": {
                "description": "Bar shape parameter d."
            },
            "BECShapeParameter_e": {
                "description": "Bar shape parameter e."
            },
            "BECShapeParameter_f": {
                "description": "Bar shape parameter f."
            },
            "BECShapeParameter_g": {
                "description": "Bar shape parameter g."
            },
            "BECShapeParameter_h": {
                "description": "Bar shape parameter h."
            },
            "BECShapeParameter_i": {
                "description": "Bar shape parameter i."
            },
            "BECShapeParameter_j": {
                "description": "Bar shape parameter j."
            },
            "BECShapeParameter_k": {
                "description": "Bar shape parameter k."
            },
            "BECShapeParameter_l": {
                "description": "Bar shape parameter l."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcStructuralElementsDomain/Pset_ReinforcingBarBendingsBECCommon.xml"
    },
    "Pset_ReinforcingBarBendingsBS8666Common": {
        "properties": {
            "BS8666ShapeCode": {
                "description": "The bending type code for the specific bending shape as defined in the BS8666 standard. Note: depending on the standardized shape different combinations of following parameters A...E and r are used."
            },
            "BS8666ShapeParameter_A": {
                "description": "Bar shape parameter A."
            },
            "BS8666ShapeParameter_B": {
                "description": "Bar shape parameter B."
            },
            "BS8666ShapeParameter_C": {
                "description": "Bar shape parameter C."
            },
            "BS8666ShapeParameter_D": {
                "description": "Bar shape parameter D."
            },
            "BS8666ShapeParameter_E": {
                "description": "Bar shape parameter E."
            },
            "BS8666ShapeParameter_r": {
                "description": "Bar shape parameter r. Used for bending radius."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcStructuralElementsDomain/Pset_ReinforcingBarBendingsBS8666Common.xml"
    },
    "Pset_ReinforcingBarBendingsDIN135610Common": {
        "properties": {
            "DIN135610ShapeCode": {
                "description": "The bending type code for the specific bending shape as defined in the DIN 1356 Teil 10 standard. Note: depending on the standardized shape different combinations of following parameters a...z are used."
            },
            "DIN135610ShapeParameter_a": {
                "description": "Bar shape parameter a. Note: this parameter is also used for parameter a0 (shape code B3)"
            },
            "DIN135610ShapeParameter_b": {
                "description": "Bar shape parameter b. Note: this parameter is also used for parameter b0 (shape codes C2 and C3)"
            },
            "DIN135610ShapeParameter_c": {
                "description": "Bar shape parameter c."
            },
            "DIN135610ShapeParameter_d": {
                "description": "Bar shape parameter d. Note: this parameter is also used for parameter d0 (shape code B3)"
            },
            "DIN135610ShapeParameter_e": {
                "description": "Bar shape parameter e. Note: this parameter is also used for parameter e0 (shape codes A4 and C3)"
            },
            "DIN135610ShapeParameter_z": {
                "description": "Bar shape parameter z."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcStructuralElementsDomain/Pset_ReinforcingBarBendingsDIN135610Common.xml"
    },
    "Pset_ReinforcingBarBendingsISOCD3766Common": {
        "properties": {
            "ISOCD3766BendingEndHook": {
                "description": "The angle of the hook at end of the bar. If the property is not included  the bar has no end hook. Note: this differs from how ISO/CD 3766 handles end hooks."
            },
            "ISOCD3766BendingStartHook": {
                "description": "The angle of the hook at start of the bar. If the property is not included the bar has no start hook. Note: this differs from how ISO/CD 3766 handles end hooks."
            },
            "ISOCD3766ShapeCode": {
                "description": "The bending type code for the specific bending shape as defined in the ISO/CD 3766 standard. Note: depending on the standardized shape different combinations of following parameters a...e and R are used."
            },
            "ISOCD3766ShapeParameter_R": {
                "description": "Bar shape parameter R. Used for bending radius."
            },
            "ISOCD3766ShapeParameter_a": {
                "description": "Bar shape parameter a."
            },
            "ISOCD3766ShapeParameter_b": {
                "description": "Bar shape parameter b."
            },
            "ISOCD3766ShapeParameter_c": {
                "description": "Bar shape parameter c."
            },
            "ISOCD3766ShapeParameter_d": {
                "description": "Bar shape parameter d."
            },
            "ISOCD3766ShapeParameter_e": {
                "description": "Bar shape parameter e."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcStructuralElementsDomain/Pset_ReinforcingBarBendingsISOCD3766Common.xml"
    },
    "Pset_Reliability": {
        "properties": {
            "MeanTimeBetweenFailure": {
                "description": "The average time duration between instances of failure of a product."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedFacilitiesElements/Pset_Reliability.xml"
    },
    "Pset_Risk": {
        "properties": {
            "AffectsSurroundings": {
                "description": "Indicates wether the risk affects only to the person assigned to that task (FALSE) or if it can also affect to the people in the surroundings (TRUE)."
            },
            "AssessmentOfRisk": {
                "description": "Likelihood of risk event occurring."
            },
            "NatureOfRisk": {
                "description": "An indication of the generic nature of the risk that might be encountered. "
            },
            "PreventiveMeassures": {
                "description": "Identifies preventive measures to be taken to mitigate risk"
            },
            "RiskCause": {
                "description": "A value that may be assigned to capture the cause or trigger for the risk. An example might be 'poor fixing'"
            },
            "RiskConsequence": {
                "description": "Indicates the level of severity of the consequences that the risk would have in case it happens"
            },
            "RiskOwner": {
                "description": "A determination of who is the owner of the risk by reference to principal roles of organizations within a project. Determination of the specific organization should be by reference to instances of IfcActorRole assigned to instances of IfcOrganization (if assigned)."
            },
            "RiskRating": {
                "description": "A general rating of the risk that may be determined from a combination of the risk assessment and risk consequence"
            },
            "RiskType": {
                "description": "Identifies the predefined types of risk from which the type required may be set."
            },
            "SubNatureOfRisk1": {
                "description": "A first subsidiary value that might be assigned to designate a more specific type of risk."
            },
            "SubNatureOfRisk2": {
                "description": "A second subsidiary value that might be assigned to designate a more specific type of risk. An example might be 'o person and property'"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedFacilitiesElements/Pset_Risk.xml"
    },
    "Pset_RoofCommon": {
        "properties": {
            "FireRating": {
                "description": "Fire rating for this object. It is given according to the national fire safety classification."
            },
            "IsExternal": {
                "description": "Indication whether the element is designed for use in the exterior (TRUE) or not (FALSE). If (TRUE) it is an external element and faces the outside of the building."
            },
            "ProjectedArea": {
                "description": "Area of the roof projected onto a 2D horizontal plane"
            },
            "Reference": {
                "description": "Reference ID for this specified type in this project (e.g. type 'A-1')"
            },
            "TotalArea": {
                "description": "Total exposed area of the roof"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgElements/Pset_RoofCommon.xml"
    },
    "Pset_SanitaryTerminalTypeBath": {
        "properties": {
            "BathType": {
                "description": "The property enumeration defines the types of bath that may be specified within the property set where:"
            },
            "Color": {
                "description": "Principal color of the object."
            },
            "DrainSize": {
                "description": "The size of the drain outlet connection from the object."
            },
            "HasGrabHandles": {
                "description": "Indicates whether the bath is fitted with handles that provide assistance to a bather in entering or leaving the bath"
            },
            "Material": {
                "description": "Material from which the object is constructed"
            },
            "MaterialThickness": {
                "description": "Thickness of the material from which the object is constructed"
            },
            "NominalDepth": {
                "description": "Nominal or quoted depth of the object."
            },
            "NominalLength": {
                "description": "Nominal or quoted length of the object."
            },
            "NominalWidth": {
                "description": "Nominal or quoted width of the object."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcPlumbingFireProtectionDomain/Pset_SanitaryTerminalTypeBath.xml"
    },
    "Pset_SanitaryTerminalTypeBidet": {
        "properties": {
            "BidetMounting": {
                "description": "The property enumeration Pset_SanitaryMountingEnum defines the forms of mounting or fixing of the sanitary terminal that may be specified within property sets used to define sanitary terminals (WC\u2019s, basins, sinks, etc.) where:-"
            },
            "Color": {
                "description": "Color selection for this object"
            },
            "DrainSize": {
                "description": "The size of the drain outlet connection from the object"
            },
            "Material": {
                "description": "Material from which the object is constructed"
            },
            "NominalDepth": {
                "description": "Nominal or quoted depth of the object."
            },
            "NominalLength": {
                "description": "Nominal or quoted length of the object."
            },
            "NominalWidth": {
                "description": "Nominal or quoted width of the object."
            },
            "SpilloverLevel": {
                "description": "The level at which water spills out of the object"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcPlumbingFireProtectionDomain/Pset_SanitaryTerminalTypeBidet.xml"
    },
    "Pset_SanitaryTerminalTypeCistern": {
        "properties": {
            "CisternCapacity": {
                "description": "Volumetric capacity of the cistern"
            },
            "CisternColor": {
                "description": "Color of the object"
            },
            "CisternHeight": {
                "description": "Enumeration that identifies the height of the cistern or, if set to 'None' if the urinal has no cistern and is flushed using mains or high pressure water through a flushing valve."
            },
            "CisternMaterial": {
                "description": "Material from which the object is constructed"
            },
            "FlushRate": {
                "description": "The minimum and maximum volume of water used at each flush. Where a single flush is used, the value of upper bound and lower bound should be equal. For a dual flush toilet, the lower bound should be used for the lesser flush rate and the upper bound for the greater flush rate. Where flush is achieved using mains pressure water through a flush valve, the value of upper and lower bound should be equal and should be the same as the flush rate property of the flush valve (see relevant valve property set). Alternatively, in this case, do not assert the flush rate property; refer to the flush rate of the flush valve."
            },
            "FlushType": {
                "description": "The property enumeration Pset_FlushTypeEnum defines the types of flushing mechanism that may be specified for cisterns and sanitary terminals where:-"
            },
            "IsAutomaticFlush": {
                "description": "Boolean value that determines if the cistern is flushed automatically either after each use or periodically (TRUE) or whether manual flushing is required (FALSE)"
            },
            "IsSingleFlush": {
                "description": "Indicates whether the cistern is single flush = TRUE (i.e. the same amount of water is used for each and every flush) or dual flush = FALSE (i.e. the amount of water used for a flush may be selected by the user to be high or low depending on the waste material to be removed)"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcPlumbingFireProtectionDomain/Pset_SanitaryTerminalTypeCistern.xml"
    },
    "Pset_SanitaryTerminalTypeSanitaryFountain": {
        "properties": {
            "Color": {
                "description": "Color selection for this object"
            },
            "DrainSize": {
                "description": "The size of the drain outlet connection from the object"
            },
            "FountainType": {
                "description": "Selection of the type of fountain from the enumerated list of types where:-"
            },
            "Material": {
                "description": "Material from which the object is constructed"
            },
            "Mounting": {
                "description": "Selection of the form of mounting of the fountain from the enumerated list of mountings where:-"
            },
            "NominalDepth": {
                "description": "Nominal or quoted depth of the object."
            },
            "NominalLength": {
                "description": "Nominal or quoted length of the object."
            },
            "NominalWidth": {
                "description": "Nominal or quoted width of the object."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcPlumbingFireProtectionDomain/Pset_SanitaryTerminalTypeSanitaryFountain.xml"
    },
    "Pset_SanitaryTerminalTypeShower": {
        "properties": {
            "Color": {
                "description": "Color selection for this object"
            },
            "DrainSize": {
                "description": "The size of the drain outlet connection from the object"
            },
            "HasTray": {
                "description": "Indicates whether the shower has a separate receptacle that catches the water in a shower and directs it to a waste outlet."
            },
            "Material": {
                "description": "Material from which the object is constructed"
            },
            "MaterialThickness": {
                "description": "Thickness of the material from which the object is constructed"
            },
            "NominalDepth": {
                "description": "Nominal or quoted depth of the object."
            },
            "NominalLength": {
                "description": "Nominal or quoted length of the object."
            },
            "NominalWidth": {
                "description": "Nominal or quoted width of the object."
            },
            "ShowerHeadDescription": {
                "description": "A description of the shower head(s) that emit the spray of water"
            },
            "ShowerType": {
                "description": "Selection of the type of shower from the enumerated list of types where:-"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcPlumbingFireProtectionDomain/Pset_SanitaryTerminalTypeShower.xml"
    },
    "Pset_SanitaryTerminalTypeSink": {
        "properties": {
            "Color": {
                "description": "Color selection for this object"
            },
            "DrainSize": {
                "description": "The size of the drain outlet connection from the object"
            },
            "Material": {
                "description": "Material from which the object is constructed"
            },
            "NominalDepth": {
                "description": "Nominal or quoted depth of the object."
            },
            "NominalLength": {
                "description": "Nominal or quoted length of the object."
            },
            "NominalWidth": {
                "description": "Nominal or quoted width of the object."
            },
            "SinkMounting": {
                "description": "Selection of the form of mounting of the sink from the enumerated list of mountings where:-"
            },
            "SinkType": {
                "description": "Selection of the type of sink from the enumerated list of types where:-"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcPlumbingFireProtectionDomain/Pset_SanitaryTerminalTypeSink.xml"
    },
    "Pset_SanitaryTerminalTypeToiletPan": {
        "properties": {
            "NominalDepth": {
                "description": "Nominal or quoted depth of the object."
            },
            "NominalLength": {
                "description": "Nominal or quoted length of the object."
            },
            "NominalWidth": {
                "description": "Nominal or quoted width of the object."
            },
            "PanColor": {
                "description": "Color selection for this object"
            },
            "PanMaterial": {
                "description": "Material from which the object is constructed"
            },
            "PanMounting": {
                "description": "The property enumeration Pset_SanitaryMountingEnum defines the forms of mounting or fixing of the sanitary terminal that may be specified within property sets used to define sanitary terminals (WC\u2019s, basins, sinks, etc.) where:-"
            },
            "SpilloverLevel": {
                "description": "The level at which water spills out of the terminal."
            },
            "ToiletPanType": {
                "description": "The property enumeration Pset_ToiletPanTypeEnum defines the types of toilet pan that may be specified within the property set Pset_Toilet:-"
            },
            "ToiletType": {
                "description": "Enumeration that defines the types of toilet (water closet) arrangements that may be specified where:-"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcPlumbingFireProtectionDomain/Pset_SanitaryTerminalTypeToiletPan.xml"
    },
    "Pset_SanitaryTerminalTypeUrinal": {
        "properties": {
            "NominalDepth": {
                "description": "Nominal or quoted depth of the object."
            },
            "NominalLength": {
                "description": "Nominal or quoted length of the object."
            },
            "NominalWidth": {
                "description": "Nominal or quoted width of the object."
            },
            "SpilloverLevel": {
                "description": "The level at which water spills out of the object"
            },
            "UrinalColor": {
                "description": "Color of the urinal"
            },
            "UrinalMaterial": {
                "description": "Material from which the object is constructed"
            },
            "UrinalType": {
                "description": "Selection of the type of urinal from the enumerated list of types where:-"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcPlumbingFireProtectionDomain/Pset_SanitaryTerminalTypeUrinal.xml"
    },
    "Pset_SanitaryTerminalTypeWCSeat": {
        "properties": {
            "SeatColor": {
                "description": "Color of the object"
            },
            "SeatHasCover": {
                "description": "Indicates whether there is a cover associated with the toilet seat"
            },
            "SeatMaterial": {
                "description": "Material from which the object is constructed"
            },
            "SeatType": {
                "description": "The property enumeration Pset_ToiletSeatTypeEnum defines the types of seat that may be attached to the toilet pan and specified within the property set Pset_Toilet where:-"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcPlumbingFireProtectionDomain/Pset_SanitaryTerminalTypeWCSeat.xml"
    },
    "Pset_SanitaryTerminalTypeWashHandBasin": {
        "properties": {
            "Color": {
                "description": "Color of the object"
            },
            "DrainSize": {
                "description": "The size of the drain outlet connection from the object."
            },
            "Material": {
                "description": "Material from which the object is constructed"
            },
            "NominalDepth": {
                "description": "Nominal or quoted depth of the object."
            },
            "NominalLength": {
                "description": "Nominal or quoted length of the object."
            },
            "NominalWidth": {
                "description": "Nominal or quoted width of the object."
            },
            "WashHandBasinMounting": {
                "description": "Selection of the form of mounting from the enumerated list of mountings where:-"
            },
            "WashHandBasinType": {
                "description": "Defines the types of wash hand basin that may be specified where:  DentalCuspidor = Waste water appliance that receives and flushes away mouth washings HandRinse = Wall mounted wash hand basin that has an overall width of 500mm or less Hospital = Wash hand basin that has a smooth easy clean surface without tapholes or overflow slot for use where hygiene is of prime importance.  Tipup = Wash hand basin mounted on pivots so that it can be emptied by tilting  Vanity = Wash hand basin for installation into a horizontal surface  Washfountain = Wash hand basin that is circular, semi-circular or polygonal on plan, at which more than one person can wash at the same time.  WashingTrough = Wash hand basin of elongated rectangular shape in plan, at which more than one person can wash at the same time."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcPlumbingFireProtectionDomain/Pset_SanitaryTerminalTypeWashHandBasin.xml"
    },
    "Pset_SensorTypeCO2Sensor": {
        "properties": {
            "AccuracyOfCO2Sensor": {
                "description": "The accuracy of the sensor"
            },
            "CO2SensorRange": {
                "description": "The upper and lower bounds for operation of the CO2 sensor."
            },
            "CoverageArea": {
                "description": "The floor area that is covered by the sensor (typically measured as a circle whose center is at the location of the sensor)"
            },
            "TimeConstant": {
                "description": "The time constant of the sensor ."
            },
            "WashHandBasinSetPoint": {
                "description": "The CO2 value to be sensed."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcBuildingControlsDomain/Pset_SensorTypeCO2Sensor.xml"
    },
    "Pset_SensorTypeFireSensor": {
        "properties": {
            "AccuracyOfFireSensor": {
                "description": "The accuracy of the sensor"
            },
            "FireSensorSetPoint": {
                "description": "The temperature value to be sensed to indicate the presence of fire."
            },
            "TimeConstant": {
                "description": "The time constant of the sensor ."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcBuildingControlsDomain/Pset_SensorTypeFireSensor.xml"
    },
    "Pset_SensorTypeGasSensor": {
        "properties": {
            "AccuracyOfGasSensor": {
                "description": "The accuracy of the sensor"
            },
            "GasDetected": {
                "description": "Identification of the gas that is being detected."
            },
            "GasSensorRange": {
                "description": "The upper and lower bounds of gas concentration for operation of the gas sensor."
            },
            "GasSensorSetPoint": {
                "description": "The gas concentration value to be sensed."
            },
            "TimeConstant": {
                "description": "The time constant of the sensor ."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcBuildingControlsDomain/Pset_SensorTypeGasSensor.xml"
    },
    "Pset_SensorTypeHeatSensor": {
        "properties": {
            "CoverageArea": {
                "description": "The area that is covered by the sensor (typically measured as a circle whose center is at the location of the sensor)"
            },
            "HeatSensorAccuracy": {
                "description": "The accuracy of the sensor."
            },
            "HeatSensorRange": {
                "description": "The upper and lower bounds for operation of the heat sensor."
            },
            "HeatSensorSetPoint": {
                "description": "The temperature value to be sensed."
            },
            "TimeConstant": {
                "description": "The time constant of the sensor. ."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcBuildingControlsDomain/Pset_SensorTypeHeatSensor.xml"
    },
    "Pset_SensorTypeHumiditySensor": {
        "properties": {
            "AccuracyOfHumiditySensor": {
                "description": "The accuracy of the sensor"
            },
            "HumiditySensorRange": {
                "description": "The upper and lower bounds for operation of the humidity sensor."
            },
            "HumiditySetPoint": {
                "description": "The humidity value to be sensed."
            },
            "TimeConstant": {
                "description": "The time constant of the sensor ."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcBuildingControlsDomain/Pset_SensorTypeHumiditySensor.xml"
    },
    "Pset_SensorTypeLightSensor": {
        "properties": {
            "LightSensorAccuracy": {
                "description": "The accuracy of the sensor."
            },
            "LightSensorRange": {
                "description": "The upper and lower bounds for operation of the light sensor."
            },
            "LightSensorSetPoint": {
                "description": "The illuminance value to be sensed."
            },
            "TimeConstant": {
                "description": "The time constant of the sensor. ."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcBuildingControlsDomain/Pset_SensorTypeLightSensor.xml"
    },
    "Pset_SensorTypeMovementSensor": {
        "properties": {
            "MovementSensingType": {
                "description": "Enumeration that identifies the type of movement sensing mechanism."
            },
            "TimeConstant": {
                "description": "The time constant of the sensor ."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcBuildingControlsDomain/Pset_SensorTypeMovementSensor.xml"
    },
    "Pset_SensorTypePressureSensor": {
        "properties": {
            "AccuracyOfPressureSensor": {
                "description": "The accuracy of the sensor"
            },
            "IsSwitch": {
                "description": "Identifies if the sensor also functions as a switch at the set point (=TRUE) or not (= FALSE)"
            },
            "PressureSensorRange": {
                "description": "The upper and lower bounds of pressure value for operation of the pressure sensor."
            },
            "PressureSensorSetPoint": {
                "description": "The pressure value to be sensed."
            },
            "TimeConstant": {
                "description": "The time constant of the sensor ."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcBuildingControlsDomain/Pset_SensorTypePressureSensor.xml"
    },
    "Pset_SensorTypeSmokeSensor": {
        "properties": {
            "AccuracyOfSmokeSensor": {
                "description": "The accuracy of the sensor"
            },
            "CoverageArea": {
                "description": "The floor area that is covered by the sensor (typically measured as a circle whose center is at the location of the sensor)"
            },
            "HasBuiltInAlarm": {
                "description": "Indicates whether the smoke sensor is included as an element within a smoke alarm/sensor unit (TRUE) or not (FALSE)."
            },
            "PressureSensorSetPoint": {
                "description": "The smoke concentration value to be sensed."
            },
            "SmokeSensorRange": {
                "description": "The upper and lower bounds of smoke concentration for operation of the smoke sensor."
            },
            "TimeConstant": {
                "description": "The time constant of the sensor ."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcBuildingControlsDomain/Pset_SensorTypeSmokeSensor.xml"
    },
    "Pset_SensorTypeSoundSensor": {
        "properties": {
            "SoundSensorAccuracy": {
                "description": "The accuracy of the sensor."
            },
            "SoundSensorRange": {
                "description": "The upper and lower bounds for operation of the sound sensor."
            },
            "SoundSensorSetPoint": {
                "description": "The sound pressure value to be sensed."
            },
            "TimeConstant": {
                "description": "The time constant of the sensor. ."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcBuildingControlsDomain/Pset_SensorTypeSoundSensor.xml"
    },
    "Pset_SensorTypeTemperatureSensor": {
        "properties": {
            "AccuracyOfTemperatureSensor": {
                "description": "The accuracy of the sensor"
            },
            "TemperatureSensorRange": {
                "description": "The upper and lower bounds for operation of the temperature sensor. May also be termed 'deadband'"
            },
            "TemperatureSensorSetPoint": {
                "description": "The temperature value to be sensed."
            },
            "TemperatureSensorType": {
                "description": "Enumeration that Identifies the types of temperature sensor that can be specified."
            },
            "TimeConstant": {
                "description": "The time constant of the sensor ."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcBuildingControlsDomain/Pset_SensorTypeTemperatureSensor.xml"
    },
    "Pset_SiteCommon": {
        "properties": {
            "BuildableArea": {
                "description": "The area of utilization expressed as a minimum value and a maximum value  - according to local building codes."
            },
            "BuildingHeightLimit": {
                "description": "Calculated maximum height of buildings on this site - according to local building codes."
            },
            "TotalArea": {
                "description": "Total area of the site - masured according to local building codes."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcProductExtension/Pset_SiteCommon.xml"
    },
    "Pset_SlabCommon": {
        "properties": {
            "AcousticRating": {
                "description": "Acoustic rating for this object. It is giving according to the national building code. It indicates the sound transmission resistance of this object by an index ration (instead of providing full sound absorbtion values"
            },
            "Combustible": {
                "description": "Indication whether the object is made from combustible material (TRUE) or not (FALSE)."
            },
            "Compartmentation": {
                "description": "Indication whether the object is designed to serve as a fire compartmentation (TRUE) or not (FALSE)."
            },
            "FireRating": {
                "description": "Fire rating for this object. It is given according to the national fire safety classification."
            },
            "IsExternal": {
                "description": "Indication whether the element is designed for use in the exterior (TRUE) or not (FALSE). If (TRUE) it is an external element and faces the outside of the building"
            },
            "LoadBearing": {
                "description": "Indicates whether the object is intended to carry loads (TRUE) or not (FALSE)."
            },
            "PitchAngle": {
                "description": "Angle of the slab to the horizontal when used as a component for the roof (specified as 0 degrees or not asserted for cases where the slab is not used as a roof component)."
            },
            "Reference": {
                "description": "Reference ID for this specified type in this project (e.g. type 'A-1')"
            },
            "SurfaceSpreadOfFlame": {
                "description": "Indication on how the flames spread around the surface, It is given according to the national building code that governs the fire behaviour for materials."
            },
            "ThermalTransmittance": {
                "description": "Thermal transmittance coefficient (U-Value) of a material. Here the total thermal transmittance coefficient through the slab (including all materials)."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgElements/Pset_SlabCommon.xml"
    },
    "Pset_SpaceCommon": {
        "properties": {
            "Category": {
                "description": "Category of space usage or utilization of the area. It is defined according to the presiding national building code."
            },
            "CeilingCovering": {
                "description": "Label to indicate the material or finish of the space flooring. The label is used for room book information and often displayed in room stamp."
            },
            "ConcealedCeiling": {
                "description": "Indication whether this space is declared to be a concealed ceiling (TRUE) or not (FALSE). A concealed ceiling is normally meant to be the space between a slab and a suspended ceiling."
            },
            "ConcealedFlooring": {
                "description": "Indication whether this space is declared to be a concealed flooring (TRUE) or not (FALSE). A concealed flooring is normally meant to be the space beneath a raised floor."
            },
            "FloorCovering": {
                "description": "Label to indicate the material or finish of the space flooring. The label is used for room book information and often displayed in room stamp."
            },
            "GrossPlannedArea": {
                "description": "Total planned area for the space. Used for programming the space."
            },
            "HandicapAccessible": {
                "description": "Indication whether this space (in case of e.g., a toilet) is designed to serve as an accessible space for handicapped people, e.g., for a public toilet (TRUE) or not (FALSE). This information is often used to declare the need for access for the disabled and for special design requirements of this space."
            },
            "NetPlannedArea": {
                "description": ""
            },
            "PubliclyAccessible": {
                "description": "Indication whether this space (in case of e.g., a toilet) is designed to serve as a publicly accessible space, e.g., for a public toilet (TRUE) or not (FALSE)."
            },
            "Reference": {
                "description": "Reference ID for this specified type in this project (e.g. type 'A-1')"
            },
            "SkirtingBoard": {
                "description": "Label to indicate the material or construction of the skirting board around the space flooring. The label is used for room book information and often displayed in room stamp."
            },
            "WallCovering": {
                "description": "Label to indicate the material or finish of the space flooring. The label is used for room book information and often displayed in room stamp."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcProductExtension/Pset_SpaceCommon.xml"
    },
    "Pset_SpaceFireSafetyRequirements": {
        "properties": {
            "AirPressurization": {
                "description": "Indication whether the space is required to have pressurized air (TRUE) or not (FALSE)."
            },
            "AncillaryFireUse": {
                "description": "Ancillary fire use for the space which is assigned from the fire use classification table as given by the relevant national building code."
            },
            "FireExit": {
                "description": "Indication whether this object is designed to serve as an exit in the case of fire (TRUE) or not (FALSE). Here whether the space (in case of e.g., a corridor) is designed to serve as an exit space, e.g., for fire escape purposes."
            },
            "FireHazardFactor": {
                "description": "Fire hazard code of the space. The coding depends on the national fire safety regulations."
            },
            "FireRiskFactor": {
                "description": "Fire Risk factor assigned to the space according to local building regulations."
            },
            "FlammableStorage": {
                "description": "Indication whether the space is intended to serve as a storage of flammable material (which is regarded as such by the presiding building code. (TRUE) indicates yes, (FALSE) otherwise."
            },
            "MainFireUse": {
                "description": "Main fire use for the space which is assigned from the fire use classification table as given by the relevant national building code."
            },
            "SprinklerProtection": {
                "description": "Indication whether the space is sprinkler protected (TRUE) or not (FALSE)."
            },
            "SprinklerProtectionAutomatic": {
                "description": "Indication whether the space has an automatic sprinkler protection (TRUE) or not (FALSE). It should only be given, if the property \"SprinklerProtection\" is set to TRUE."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcProductExtension/Pset_SpaceFireSafetyRequirements.xml"
    },
    "Pset_SpaceHeaterPHistoryCommon": {
        "properties": {
            "AirResistanceCurve": {
                "description": "Air resistance curve (w/ fan only); Pressure = f ( flow rate)."
            },
            "AuxiliaryEnergySourceConsumption": {
                "description": "Auxiliary energy source consumption."
            },
            "Effectiveness": {
                "description": "Ratio of the real heat transfer rate to the maximum possible heat transfer rate."
            },
            "Exponent": {
                "description": "Characteristic exponent, slope of log(heat output) vs log (surface temperature minus environmental temperature)."
            },
            "FractionConvectiveHeatTransfer": {
                "description": "Fraction of the total heat transfer rate as the convective heat transfer."
            },
            "FractionRadiantHeatTransfer": {
                "description": "Fraction of the total heat transfer rate as the radiant heat transfer."
            },
            "HeatOutputRate": {
                "description": "Overall heat transfer rate."
            },
            "OutputCapacityCurve": {
                "description": "Partial output capacity curve (as a function of water temperature); Q = f (Twater)."
            },
            "SpaceAirTemperature": {
                "description": "Dry bulb temperature in the space."
            },
            "SpaceMeanRadiantTemperature": {
                "description": "Mean radiant temperature in the space."
            },
            "SurfaceTemperature": {
                "description": "Average surface temperature of the component."
            },
            "UACurve": {
                "description": "UA curve as function of ambient temperature and surface temperature; UA = f (Tambient, Tsurface)"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_SpaceHeaterPHistoryCommon.xml"
    },
    "Pset_SpaceHeaterTypeCommon": {
        "properties": {
            "BodyMass": {
                "description": "Overall body mass of the heater."
            },
            "HeatingSource": {
                "description": "Enumeration defining the heating source used by the space heater."
            },
            "Material": {
                "description": "Primary material from which the object is constructed."
            },
            "OutputCapacity": {
                "description": "Total nominal heat output as listed by the manufacturer."
            },
            "TemperatureClassification": {
                "description": "Enumeration defining the temperature classification of the space heater surface temperature. low temperature - surface temperature is relatively low, usually heated by hot water or electricity. high temperature - surface temperature is relatively high, usually heated by gas or steam."
            },
            "ThermalEfficiency": {
                "description": "Overall Thermal Efficiency is defined as gross energy output of the heat transfer device divided by the energy input."
            },
            "ThermalMassHeatCapacity": {
                "description": "Product of component mass and specific heat"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_SpaceHeaterTypeCommon.xml"
    },
    "Pset_SpaceHeaterTypeHydronic": {
        "properties": {
            "TubingLength": {
                "description": "Water tube length inside the component."
            },
            "WaterContent": {
                "description": "Weight of water content within the heater."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_SpaceHeaterTypeHydronic.xml"
    },
    "Pset_SpaceLightingRequirements": {
        "properties": {
            "ArtificialLighting": {
                "description": "Indication whether this space  requires artificial lighting (as natural lighting would be not sufficient). (TRUE) indicates yes (FALSE) otherwise."
            },
            "Illuminance": {
                "description": "Required average illuminance value for this space."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcProductExtension/Pset_SpaceLightingRequirements.xml"
    },
    "Pset_SpaceOccupancyRequirements": {
        "properties": {
            "AreaPerOccupant": {
                "description": "Design occupancy loading for this type of usage assigned to this space."
            },
            "IsOutlookDesirable": {
                "description": "An indication of whether the outlook is desirable (set TRUE) or not (set FALSE)"
            },
            "MinimumHeadroom": {
                "description": "Headroom required for the activity assigned to this space."
            },
            "OccupancyNumber": {
                "description": "Number of people required for the activity assigned to this space."
            },
            "OccupancyNumberPeak": {
                "description": "Maximal number of people required for the activity assigned to this space in peak time."
            },
            "OccupancyTimePerDay": {
                "description": "The amount of time during the day that the activity is required within this space."
            },
            "OccupancyType": {
                "description": "Occupancy type for this object. It is defined according to the presiding national building code."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcProductExtension/Pset_SpaceOccupancyRequirements.xml"
    },
    "Pset_SpaceParking": {
        "properties": {
            "HandicapAccessible": {
                "description": "Indication that this object is designed to be accessible by the handicapped.  It is giving according to the requirements of the national building code."
            },
            "ParkingUnits": {
                "description": "Indicates the number of transporation units of the type specified by the property ParkingUse that may be accommodated within the space. Generally, this value should default to 1 unit. However, where the parking space is for motorcycles or bicycles, provision may be made for more than one unit in the space."
            },
            "ParkingUse": {
                "description": "Identifies the type of transporation for which the parking space is designed. Values are not predefined but might include car, compact car, motorcycle, bicycle, truck, bus etc."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcProductExtension/Pset_SpaceParking.xml"
    },
    "Pset_SpaceParkingAisle": {
        "properties": {
            "IsOneWay": {
                "description": "Indicates whether the parking aisle is designed for oneway traffic (TRUE) or twoway traffic (FALSE)."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcProductExtension/Pset_SpaceParkingAisle.xml"
    },
    "Pset_SpaceProgramCommon": {
        "properties": {
            "EmployeeType": {
                "description": "General description of the employee type that will occupy the space (e.g.  manager, programmer, secretary, etc.). The type classification depends on the company based terms for employee types."
            },
            "FFETypeRequirement": {
                "description": "General description of the Furniture, Fixtures and Equipment requirement for this space."
            },
            "FunctionRequirement": {
                "description": "General description of the functional requirement for the space (in addition to the space name)"
            },
            "LightingRequirement": {
                "description": "General description of the lighting requirement for the space (e.g. \"natural lighting required\")"
            },
            "Location": {
                "description": "General description of the required location for the space (e.g. \"third floor south\")"
            },
            "OccupancyNumber": {
                "description": "Maximum number of occupants for the designed usage of the space."
            },
            "OccupancyType": {
                "description": "Occupancy type for this object. It is defined according to the presiding national building code."
            },
            "PrivacyRequirement": {
                "description": "General description of the privacy requirement for the space (in addition to the security requirement)"
            },
            "SecurityRequirement": {
                "description": "General description of the security requirement for the space (in addition to the function requirement)"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcArchitectureDomain/Pset_SpaceProgramCommon.xml"
    },
    "Pset_SpaceThermalDesign": {
        "properties": {
            "BoundaryAreaHeatLoss": {
                "description": "Heat loss per unit area for the boundary object. This is a design input value for use in the absence of calculated load data."
            },
            "CeilingRAPlenum": {
                "description": "Ceiling plenum used for return air or not. TRUE = Yes, FALSE = No."
            },
            "CoolingDesignAirflow": {
                "description": "The air flowrate required during the peak cooling conditions."
            },
            "CoolingDryBulb": {
                "description": "Inside dry bulb temperature for cooling design"
            },
            "CoolingRelativeHumidity": {
                "description": "Inside relative humidity for cooling design."
            },
            "ExhaustAirFlowrate": {
                "description": "Design exhaust air flow rate for the space."
            },
            "HeatingDesignAirflow": {
                "description": "The air flowrate required during the peak heating conditions, but could also be determined by minimum ventilation requirement or minimum air change requirements."
            },
            "HeatingDryBulb": {
                "description": "Inside dry bulb temperature for heating design"
            },
            "HeatingRelativeHumidity": {
                "description": "Inside relative humidity for heating design."
            },
            "TotalHeatGain": {
                "description": "The total amount of heat or energy gained by the space at the time of the space's peak cooling conditions."
            },
            "TotalHeatLoss": {
                "description": "The total amount of heat or energy lost by the space at the time of the space's peak heating conditions."
            },
            "TotalSensibleHeatGain": {
                "description": "The total sensible heat or energy gained by the space during the peak cooling conditions."
            },
            "VentilationAirFlowrate": {
                "description": "Ventilation outside air requirement for the space."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgServiceElements/Pset_SpaceThermalDesign.xml"
    },
    "Pset_SpaceThermalPHistory": {
        "properties": {
            "CoolingAirFlowRate": {
                "description": "Cooling air flow rate in the space."
            },
            "ExhaustAirFlowRate": {
                "description": "Exhaust air flow rate in the space."
            },
            "HeatingAirFlowRate": {
                "description": "Heating air flow rate in the space."
            },
            "SpaceRelativeHumidity": {
                "description": "The relative humidity of the space."
            },
            "SpaceTemperature": {
                "description": "Temperature of the space."
            },
            "VentilationAirFlowRate": {
                "description": "Ventilation air flow rate in the space."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_SpaceThermalPHistory.xml"
    },
    "Pset_SpaceThermalRequirements": {
        "properties": {
            "AirConditioning": {
                "description": "Indication whether this space requires air conditioning provided (TRUE) or not (FALSE)."
            },
            "AirConditioningCentral": {
                "description": "Indication whether the space  requires a central air conditioning provided (TRUE) or not (FALSE). It should only be given, if the property \"AirConditioning\" is set to TRUE."
            },
            "DiscontinuedHeating": {
                "description": "Indication whether discontinued heating is required/desirable from user/designer view point. (TRUE) if yes, (FALSE) otherwise."
            },
            "MechanicalVentilationRate": {
                "description": "Indication of the requirement of a particular mechanical air ventilation rate, given in air changes per hour."
            },
            "NaturalVentilation": {
                "description": "Indication whether the space is required to have natural ventilation (TRUE) or mechanical ventilation (FALSE)."
            },
            "NaturalVentilationRate": {
                "description": "Indication of the requirement of a particular natural air ventilation rate, given in air changes per hour."
            },
            "SpaceHumidity": {
                "description": "Humidity of the space or zone that is required from user/designer view point.  If no summer or winter space humidity requirements are given, it applies all year, otherwise for the intermediate period."
            },
            "SpaceHumiditySummer": {
                "description": "Humidity of the space or zone for the hot (summer) period, that is required from user/designer view point."
            },
            "SpaceHumidityWinter": {
                "description": "Humidity of the space or zone for the cold (winter) period that is required from user/designer view point."
            },
            "SpaceTemperatureMax": {
                "description": "Temperature of the space or zone, that is required from user/designer view point.  If no summer or winter space temperature requirements are given, it applies all year, otherwise for the intermediate period."
            },
            "SpaceTemperatureMin": {
                "description": "Minimal temperature of the space or zone, that is required from user/designer view point. If no summer or winter space temperature requirements are given, it applies all year, otherwise for the intermediate period."
            },
            "SpaceTemperatureSummerMax": {
                "description": "Maximal temperature of the space or zone for the hot (summer) period, that is required from user/designer view point."
            },
            "SpaceTemperatureSummerMin": {
                "description": "Minimal temperature of the space or zone for the hot (summer) period, that is required from user/designer view point."
            },
            "SpaceTemperatureWinterMax": {
                "description": "Maximal temperature of the space or zone for the cold (winter) period, that is required from user/designer view point."
            },
            "SpaceTemperatureWinterMin": {
                "description": "Minimal temperature of the space or zone for the cold (winter) period, that is required from user/designer view point."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcProductExtension/Pset_SpaceThermalRequirements.xml"
    },
    "Pset_StairCommon": {
        "properties": {
            "FireExit": {
                "description": "Indication whether this object is designed to serve as an exit in the case of fire (TRUE) or not (FALSE). Here it defines an exit stair in accordance to the national building code."
            },
            "FireRating": {
                "description": "Fire rating for this object. It is given according to the national fire safety classification."
            },
            "HandicapAccessible": {
                "description": "Indication that this object is designed to be accessible by the handicapped.  Set to (TRUE) if this stair is rated as handicap accessible  according the local building codes, otherwise (FALSE). Accessibility maybe provided by additional means."
            },
            "HasNonSkidSurface": {
                "description": "Indication whether the surface finish is designed to prevent slippery (TRUE) or not (FALSE)."
            },
            "IsExternal": {
                "description": "Indication whether the element is designed for use in the exterior (TRUE) or not (FALSE). If (TRUE) it is an external element and faces the outside of the building."
            },
            "NumberOfRiser": {
                "description": "Total number of the risers included in the stair"
            },
            "NumberOfTreads": {
                "description": "Total number of treads included in the stair"
            },
            "Reference": {
                "description": "Reference ID for this specified type in this project (e.g. type 'A-1')"
            },
            "RequiredHeadroom": {
                "description": "Required headroom clearance for the passageway according to the applicable building code or additional requirements"
            },
            "RiserHeight": {
                "description": "Vertical distance from tread to tread.  The riser height is supposed to be equal for all steps of a stair or stair flight."
            },
            "TreadLength": {
                "description": "Horizontal distance from the front of the thread to the front of the next tread.  The tread length is supposed to be equal for all steps of the stair or stair flight at the walking line."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgElements/Pset_StairCommon.xml"
    },
    "Pset_StairFlightCommon": {
        "properties": {
            "Headroom": {
                "description": "Actual headroom clearance for the passageway according to the current design.  The shape information is provided in addition to the shape representation and the geometric parameters used within. In cases of inconsistency between the geometric parameters and the shape properties, provided in the attached property, the geometric parameters take precedence."
            },
            "NosingLength": {
                "description": "Horizontal distance from the front of the tread to the riser underneath. It is the overhang of the tread."
            },
            "NumberOfRiser": {
                "description": "Total number of the risers included in the stair flight"
            },
            "NumberOfTreads": {
                "description": "Total number of treads included in the stair flight"
            },
            "Reference": {
                "description": "Reference ID for this specified type in this project (e.g. type 'A-1')"
            },
            "RiserHeight": {
                "description": "Vertical distance from tread to tread.  The riser height is supposed to be equal for all steps of a stair or stair flight."
            },
            "TreadLength": {
                "description": "Horizontal distance from the front of the thread to the front of the next tread.  The tread length is supposed to be equal for all steps of the stair or stair flight at the walking line."
            },
            "TreadLengthAtInnerSide": {
                "description": "Minimum length of treads at the inner side of the winder.  Only relevant in case of winding flights, for straight flights it is identical with IfcStairFlight.TreadLength. It is a pre-calculated value, in case of inconsistencies, the value derived from the shape representation shall take precedence."
            },
            "TreadLengthAtOffset": {
                "description": "Length of treads at a given offset. Walking line position is given by the 'WalkingLineOffset'. The resulting value should normally be identical with TreadLength, it may be given in addition, if the walking line offset for building code calculations is different from that used in design."
            },
            "WaistThickness": {
                "description": "Minimum thickness of the stair flight, measured perpendicular to the slope of the flight to the inner corner of riser and tread. It is a pre-calculated value, in case of inconsistencies, the value derived from the shape representation shall take precedence."
            },
            "WalkingLineOffset": {
                "description": "Offset of the walking line from the inner side of the flight.  Note: the walking line may have a own shape representation (in case of inconsistencies, the value derived from the shape representation shall take precedence)."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgElements/Pset_StairFlightCommon.xml"
    },
    "Pset_SwitchingDeviceTypeCommon": {
        "properties": {
            "HasLock": {
                "description": "Indication of whether a switching device has a key operated lock (=TRUE) or not (= FALSE)"
            },
            "NumberOfGangs": {
                "description": "Number of gangs/buttons on this switch"
            },
            "SwitchFunction": {
                "description": "Indicates types of switches which differs in functionality"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcElectricalDomain/Pset_SwitchingDeviceTypeCommon.xml"
    },
    "Pset_SwitchingDeviceTypeContactor": {
        "properties": {
            "ContactorType": {
                "description": "A list of the available types of contactor from which that required may be selected where:"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcElectricalDomain/Pset_SwitchingDeviceTypeContactor.xml"
    },
    "Pset_SwitchingDeviceTypeEmergencyStop": {
        "properties": {
            "SwitchOperation": {
                "description": "Indicates operation of emergency stop switch."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcElectricalDomain/Pset_SwitchingDeviceTypeEmergencyStop.xml"
    },
    "Pset_SwitchingDeviceTypeStarter": {
        "properties": {
            "StarterType": {
                "description": "A list of the available types of starter from which that required may be selected where:"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcElectricalDomain/Pset_SwitchingDeviceTypeStarter.xml"
    },
    "Pset_SwitchingDeviceTypeSwitchDisconnector": {
        "properties": {
            "HasVisualIndication": {
                "description": "Indicates whether a means of being to visually ascertain whether the contacts are open or closed is fitted (= TRUE) or not (= FALSE)"
            },
            "LoadDisconnectionType": {
                "description": "A list of the available types of load disconnection from which that required may be selected."
            },
            "SwitchDisconnectorType": {
                "description": "A list of the available types of switch disconnector from which that required may be selected where:"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcElectricalDomain/Pset_SwitchingDeviceTypeSwitchDisconnector.xml"
    },
    "Pset_SwitchingDeviceTypeToggleSwitch": {
        "properties": {
            "IsIlluminated": {
                "description": "An indication of whether there is an illuminated indicator to show that the switch is on (=TRUE) or not (= FALSE)."
            },
            "Legend": {
                "description": "A text inscribed or applied to the switch as a legend to indicate purpose or function."
            },
            "SwitchActivation": {
                "description": "A list of the available activations for toggle switches from which that required may be selected"
            },
            "SwitchUsage": {
                "description": "A list of the available usages for toggle switches from which that required may be selected"
            },
            "ToggleSwitchType": {
                "description": "A list of the available types of toggle switch from which that required may be selected."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcElectricalDomain/Pset_SwitchingDeviceTypeToggleSwitch.xml"
    },
    "Pset_SystemFurnitureElementTypeCommon": {
        "properties": {
            "Finishing": {
                "description": "The finishing applied to system furniture elements of this type e.g. walnut, fabric."
            },
            "GroupCode": {
                "description": "e.g. panels, worksurfaces, storage, etc."
            },
            "IsUsed": {
                "description": "Indicates whether the element is being used in a workstation (= TRUE) or not.(= FALSE)."
            },
            "NominalHeight": {
                "description": "The nominal height of the system furniture elements of this type. The size information is provided in addition to the shape representation and the geometric parameters used within. In cases of inconsistency between the geometric parameters and the size properties, provided in the attached property set, the geometric parameters take precedence."
            },
            "NominalWidth": {
                "description": "The nominal width of the system furniture elements of this type. The size information is provided in addition to the shape representation and the geometric parameters used within. In cases of inconsistency between the geometric parameters and the size properties, provided in the attached property set, the geometric parameters take precedence."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedFacilitiesElements/Pset_SystemFurnitureElementTypeCommon.xml"
    },
    "Pset_SystemFurnitureElementTypePanel": {
        "properties": {
            "FurniturePanelType": {
                "description": "Available panel types from which that required may be selected."
            },
            "HasOpening": {
                "description": "indicates whether the panel has an opening (= TRUE) or not (= FALSE)."
            },
            "NominalThickness": {
                "description": "The nominal thickness of the panel"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedFacilitiesElements/Pset_SystemFurnitureElementTypePanel.xml"
    },
    "Pset_SystemFurnitureElementTypeWorkSurface": {
        "properties": {
            "HangingHeight": {
                "description": "The hanging height of the worksurface."
            },
            "NominalThickness": {
                "description": "The nominal thickness of the work surface."
            },
            "ShapeDescription": {
                "description": "A description of the shape of the work surface e.g. corner square, rectangle, etc."
            },
            "SupportType": {
                "description": "Available support types from which that required may be selected."
            },
            "UsePurpose": {
                "description": "The principal purpose for which the work surface is intended to be used e.g. writing/reading, computer, meeting, printer, reference files, etc."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedFacilitiesElements/Pset_SystemFurnitureElementTypeWorkSurface.xml"
    },
    "Pset_TankTypeCommon": {
        "properties": {
            "AccessType": {
                "description": "Defines the types of access (or cover) to a tank that may be specified."
            },
            "EffectiveCapacity": {
                "description": "The effective or actual volumetric capacity of the tank."
            },
            "Material": {
                "description": "Material from which the tank is constructed."
            },
            "MaterialThickness": {
                "description": "Thickness of the material from which the tank is constructed"
            },
            "NominalCapacity": {
                "description": "The nominal or design volumetric capacity of the tank."
            },
            "NominalDepth": {
                "description": "The nominal depth of the tank."
            },
            "NominalLengthOrDiameter": {
                "description": "The nominal length or, in the case of a vertical cylindrical tank, the nominal diameter of the tank"
            },
            "NominalWidthOrDiameter": {
                "description": "The nominal width or, in the case of a horizontal cylindrical tank, the nominal diameter of the tank."
            },
            "OperatingWeight": {
                "description": "Operating weight of the tank including all of its contents."
            },
            "Type": {
                "description": "Defines the types of tank that may be specified where: "
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_TankTypeCommon.xml"
    },
    "Pset_TankTypeExpansion": {
        "properties": {
            "ChargePressure": {
                "description": "Nominal or design operating pressure of the tank."
            },
            "PressureRegulatorSetting": {
                "description": "Pressure that is automatically maintained in the tank."
            },
            "ReliefValveSetting": {
                "description": "Pressure at which the relief valve activates."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_TankTypeExpansion.xml"
    },
    "Pset_TankTypePreformed": {
        "properties": {
            "EndShapeType": {
                "description": "Defines the types of end shapes that can be used for preformed tanks. The convention for reading these enumerated values is that for a vertical cylinder, the first value is the base and the second is the top; for a horizontal cylinder, the order of reading should be left to right. For a speherical tank, the value UNSET should be used."
            },
            "FirstCurvatureRadius": {
                "description": "FirstCurvatureRadius should be defined as the base or left side radius of curvature value."
            },
            "PatternType": {
                "description": "Defines the types of pattern (or shape of a tank that may be specified."
            },
            "SecondCurvatureRadius": {
                "description": "SecondCurvatureRadius should be defined as the top or right side radius of curvature value."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_TankTypePreformed.xml"
    },
    "Pset_TankTypePressureVessel": {
        "properties": {
            "ChargePressure": {
                "description": "Nominal or design operating pressure of the tank."
            },
            "PressureRegulatorSetting": {
                "description": "Pressure that is automatically maintained in the tank."
            },
            "ReliefValveSetting": {
                "description": "Pressure at which the relief valve activates."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_TankTypePressureVessel.xml"
    },
    "Pset_TankTypeSectional": {
        "properties": {
            "NumberOfSections": {
                "description": "Number of sections used in the construction of the tank"
            },
            "SectionLength": {
                "description": "The length of a section used in the construction of the tank"
            },
            "SectionWidth": {
                "description": "The width of a section used in the construction of the tank."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_TankTypeSectional.xml"
    },
    "Pset_ThermalLoadAggregate": {
        "properties": {
            "ApplianceDiversity": {
                "description": "Diversity of appliance load."
            },
            "InfiltrationDiversitySummer": {
                "description": "Diversity factor for Summer infiltration."
            },
            "InfiltrationDiversityWinter": {
                "description": "Diversity factor for Winter infiltration."
            },
            "LightingDiversity": {
                "description": "Lighting diversity."
            },
            "LoadSafetyFactor": {
                "description": "Load safety factor."
            },
            "TotalCoolingLoad": {
                "description": "The peak total cooling load for the building, zone or space."
            },
            "TotalHeatingLoad": {
                "description": "The peak total heating load for the building, zone or space."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgServiceElements/Pset_ThermalLoadAggregate.xml"
    },
    "Pset_ThermalLoadDesignCriteria": {
        "properties": {
            "AppliancePercentLoadToRadiant": {
                "description": "Percent of sensible load to radiant heat."
            },
            "LightingLoadIntensity": {
                "description": "Average lighting load intensity in the space per unit area (PowerMeasure/IfcAreaMeasure)"
            },
            "LightingPercentLoadToReturnAir": {
                "description": "Percent of lighting load to the return air plenum."
            },
            "OccupancyDiversity": {
                "description": "Diversity factor that may be applied to the number of people in the space."
            },
            "OutsideAirPerPerson": {
                "description": "Design quantity of outside air to be provided per person in the space."
            },
            "ReceptacleLoadIntensity": {
                "description": "Average power use intensity of appliances and other non-HVAC equipment.in the space per unit area.(PowerMeasure/IfcAreaMeasure)"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgServiceElements/Pset_ThermalLoadDesignCriteria.xml"
    },
    "Pset_TransformerTypeCommon": {
        "properties": {
            "MaximumApparentPower": {
                "description": "Maximum apparent power/capacity in VA (volt ampere)."
            },
            "PrimaryApparentPower": {
                "description": "The power in VA (volt ampere) that has been transformed and that runs into the transformer on the primary side."
            },
            "PrimaryCurrent": {
                "description": "The current that is going to be transformed and that runs into the transformer on the primary side."
            },
            "PrimaryFrequency": {
                "description": "The frequency that is going to be transformed and that runs into the transformer on the primary side."
            },
            "PrimaryVoltage": {
                "description": "The voltage that is going to be transformed and that runs into the transformer on the primary side."
            },
            "SecondaryApparentPower": {
                "description": "The power in VA (volt ampere) that has been transformed and is running out of the transformer on the secondary side."
            },
            "SecondaryCurrent": {
                "description": "The current that has been transformed and is running out of the transformer on the secondary side."
            },
            "SecondaryCurrentType": {
                "description": "A list of the secondary current types that can result from transformer output"
            },
            "SecondaryFrequency": {
                "description": "The frequency that has been transformed and is running out of the transformer on the secondary side."
            },
            "SecondaryVoltage": {
                "description": "The voltage that has been transformed and is running out of the transformer on the secondary side."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcElectricalDomain/Pset_TransformerTypeCommon.xml"
    },
    "Pset_TransportElementCommon": {
        "properties": {
            "FireExit": {
                "description": "Indication whether this object is designed to serve as an exit in the case of fire (TRUE) or not (FALSE). Here whether the transport element (in case of e.g., a lift) is designed to serve as a fire exit, e.g., for fire escape purposes."
            },
            "Reference": {
                "description": "Reference ID for this specified type in this project (e.g. type 'A-1')"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcProductExtension/Pset_TransportElementCommon.xml"
    },
    "Pset_TransportElementElevator": {
        "properties": {
            "ClearDepth": {
                "description": "Clear depth of the object (elevator). It indicates the distance from the inner surface of the elevator door to the opposite surface of the elevator car.  The shape information is provided in addition to the shape representation and the geometric parameters used within. In cases of inconsistency between the geometric parameters and the shape properties, provided in the attached property, the geometric parameters take precedence."
            },
            "ClearHeight": {
                "description": "Clear height of the object (elevator). The shape information is provided in addition to the shape representation and the geometric parameters used within. In cases of inconsistency between the geometric parameters and the shape properties, provided in the attached property, the geometric parameters take precedence."
            },
            "ClearWidth": {
                "description": "Clear width of the object (elevator). It indicates the distance from the inner surfaces of the elevator car left and right from the elevator door.  The shape information is provided in addition to the shape representation and the geometric parameters used within. In cases of inconsistency between the geometric parameters and the shape properties, provided in the attached property, the geometric parameters take precedence."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcProductExtension/Pset_TransportElementElevator.xml"
    },
    "Pset_TubeBundleTypeCommon": {
        "properties": {
            "FoulingFactor": {
                "description": "Fouling factor of the tubes in the tube bundle."
            },
            "HasTurbulator": {
                "description": "TRUE if the tube has a turbulator, FALSE if it does not."
            },
            "HorizontalSpacing": {
                "description": "Horizontal spacing between tubes in the tube bundle."
            },
            "InLineRowSpacing": {
                "description": "In-line tube row spacing."
            },
            "InsideDiameter": {
                "description": "Actual inner diameter of the tube in the tube bundle."
            },
            "Length": {
                "description": "Length of the tubes in the tube bundle."
            },
            "Material": {
                "description": "Material used for construction of the tubes."
            },
            "NominalDiameter": {
                "description": "Nominal diameter or width of the tubes in the tube bundle."
            },
            "NumberOfCircuits": {
                "description": "Number of parallel fluid tube circuits."
            },
            "NumberOfRows": {
                "description": "Number of tube rows in the tube bundle assembly."
            },
            "OutsideDiameter": {
                "description": "Actual outside diameter of the tube in the tube bundle."
            },
            "StaggeredRowSpacing": {
                "description": "Staggered tube row spacing."
            },
            "ThermalConductivity": {
                "description": "The thermal conductivity of the tube."
            },
            "VerticalSpacing": {
                "description": "Vertical spacing between tubes in the tube bundle."
            },
            "Volume": {
                "description": "Total volume of fluid in the tubes and their headers."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_TubeBundleTypeCommon.xml"
    },
    "Pset_TubeBundleTypeFinned": {
        "properties": {
            "Diameter": {
                "description": "Actual diameter of a fin for circular fins only."
            },
            "FinCorrugatedType": {
                "description": "Description of a fin corrugated type."
            },
            "HasCoating": {
                "description": "TRUE if the fin has a coating, FALSE if it does not."
            },
            "Height": {
                "description": "Length of the fin as measured perpendicular to the direction of airflow."
            },
            "Length": {
                "description": "Length of the fin as measured parallel to the direction of airflow."
            },
            "Material": {
                "description": "Material used for construction of the fins."
            },
            "Spacing": {
                "description": "Distance between fins on a tube in the tube bundle."
            },
            "ThermalConductivity": {
                "description": "The thermal conductivity of the fin."
            },
            "Thickness": {
                "description": "Thickness of the fin."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_TubeBundleTypeFinned.xml"
    },
    "Pset_UnitaryEquipmentTypeAirConditioningUnit": {
        "properties": {
            "CondenserEnteringTemperature": {
                "description": "Temperature of fluid entering condenser per manufacturer's listing (if available)"
            },
            "CondenserFlowrate": {
                "description": "Flow rate of fluid through the condenser per manufacturer's listing (if available)"
            },
            "CondenserLeavingTemperature": {
                "description": "Termperature of fluid leaving condenser per manufacturer's listing (if available)"
            },
            "CoolingEfficiency": {
                "description": "Coefficient of Performance: Ratio of cooling energy output to energy input under full load operating conditions per ARI Standards 210/240, 270, 275, 360, 340 and 365."
            },
            "HeatingCapacity": {
                "description": "Heating capacity of the PackagedACUnit per ARI Standards 210/240, 270, 275, 360, 340 and 365 for heat pumps, AFUE for fuel burning and NEMA for electric heat."
            },
            "HeatingEfficiency": {
                "description": "Heating efficiency of the PackagedACUnit under full load heating conditions per ARI Standards 210/240, 270, 275, 360, 340 and 365 for heat pumps, AFUE for fuel burning and NEMA for electric heat."
            },
            "LatentCoolingCapacity": {
                "description": "Latent cooling capacity of the PackagedACUnit per ARI Standards 210/240, 270, 275, 360, 340 and 365."
            },
            "OutsideAirFlowrate": {
                "description": "Flow rate of outside air entering the PackagedACUnit per the manufacturer's listing (if available)"
            },
            "SensibleCoolingCapacity": {
                "description": "Sensible cooling capacity of the PackagedACUnit per ARI Standards 210/240, 270, 275, 360, 340 and 365."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_UnitaryEquipmentTypeAirConditioningUnit.xml"
    },
    "Pset_UnitaryEquipmentTypeAirHandler": {
        "properties": {
            "AirHandlerConstruction": {
                "description": "Enumeration defining how the air handler might be fabricated."
            },
            "AirHandlerFanCoilArrangement": {
                "description": "Enumeration defining the arrangement of the supply air fan and the cooling coil."
            },
            "DualDeck": {
                "description": "Does the AirHandler have a dual deck? TRUE = Yes, FALSE = No."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_UnitaryEquipmentTypeAirHandler.xml"
    },
    "Pset_UtilityConsumption": {
        "properties": {
            "Electricity": {
                "description": "The amount of electricity consumed during the period specified in the time series."
            },
            "Fuel": {
                "description": "The amount of fuel consumed during the period specified in the time series."
            },
            "Heat": {
                "description": "The amount of heat energy consumed during the period specified in the time series."
            },
            "Steam": {
                "description": "The amount of steam consumed during the period specified in the time series."
            },
            "Water": {
                "description": "The amount of water consumed during the period specified in the time series."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgServiceElements/Pset_UtilityConsumption.xml"
    },
    "Pset_ValvePHistory": {
        "properties": {
            "MeasuredFlowRate": {
                "description": "The rate of flow of a fluid measured across the valve."
            },
            "MeasuredPressureDrop": {
                "description": "The actual pressure drop in the fluid measured across the valve."
            },
            "PercentageOpen": {
                "description": "The ratio between the amount that the valve is open to the full open position of the valve."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_ValvePHistory.xml"
    },
    "Pset_ValveTypeAirRelease": {
        "properties": {
            "IsAutomatic": {
                "description": "Indication of whether the valve is automatically operated (TRUE) or manually operated (FALSE)"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_ValveTypeAirRelease.xml"
    },
    "Pset_ValveTypeCommon": {
        "properties": {
            "BodyMaterial": {
                "description": "Material from which the body of the valve is constructed"
            },
            "CloseOffRating": {
                "description": "Close off rating."
            },
            "FlowCoefficient": {
                "description": "Flow coefficient (the quantity of fluid that passes through a fully open valve at unit pressure drop), typically expressed as the Kv or Cv value for the valve."
            },
            "OperatingMechanismMaterial": {
                "description": "Material from which the operating mechanism (gate, globe, plug, needle, clack etc.) of the valve is constructed"
            },
            "Size": {
                "description": "The size of the connection to the valve (or to each connection for faucets, mixing valves, etc.)"
            },
            "TestPressure": {
                "description": "The maximum pressure to which the valve has been subjected under test"
            },
            "ValveMechanism": {
                "description": "The mechanism by which the valve function is achieved where:"
            },
            "ValveOperation": {
                "description": "The method of valve operation where:"
            },
            "ValvePattern": {
                "description": "The configuration of the ports of a valve according to either the linear route taken by a fluid flowing through the valve or by the number of ports where:"
            },
            "WorkingPressure": {
                "description": "The normally expected maximum working pressure of the valve"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_ValveTypeCommon.xml"
    },
    "Pset_ValveTypeDrawOffCock": {
        "properties": {
            "HasHoseUnion": {
                "description": "Indicates whether the drawoff cock is fitted with a hose union connection (= TRUE) or not (= FALSE)"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_ValveTypeDrawOffCock.xml"
    },
    "Pset_ValveTypeFaucet": {
        "properties": {
            "FaucetFunction": {
                "description": "Defines the operating temperature of a faucet that may be specified."
            },
            "FaucetOperation": {
                "description": "Defines the range of ways in which a faucet can be operated that may be specified where:"
            },
            "FaucetTopDescription": {
                "description": "Description of the operating mechanism/top of the faucet"
            },
            "FaucetType": {
                "description": "Defines the range of faucet types that may be specified where:"
            },
            "Finish": {
                "description": "Description of the finish applied to the faucet"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_ValveTypeFaucet.xml"
    },
    "Pset_ValveTypeFlushing": {
        "properties": {
            "FlushingRate": {
                "description": "The predetermined quantity of water to be flushed"
            },
            "HasIntegralShutOffDevice": {
                "description": "Indication of whether the flushing valve has an integral shut off device fitted (set TRUE) or not (set FALSE)"
            },
            "IsHighPressure": {
                "description": "Indication of whether the flushing valve is suitable for use on a high pressure water main (set TRUE) or not (set FALSE)"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_ValveTypeFlushing.xml"
    },
    "Pset_ValveTypeGasTap": {
        "properties": {
            "HasHoseUnion": {
                "description": "Indicates whether the gas tap is fitted with a hose union connection (= TRUE) or not (= FALSE)"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_ValveTypeGasTap.xml"
    },
    "Pset_ValveTypeIsolating": {
        "properties": {
            "IsNormallyOpen": {
                "description": "If TRUE, the valve is normally open. If FALSE is is normally closed."
            },
            "IsolatingPurpose": {
                "description": "Defines the purpose for which the isolating valve is used since the way in which the valve is identified as an isolating valve may be in the context of its use. Note that unless there is a contextual name for the isolating valve (as in the case of a Landing Valve on a rising fire main), then the value assigned shoulkd be UNSET"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_ValveTypeIsolating.xml"
    },
    "Pset_ValveTypeMixing": {
        "properties": {
            "MixerControl": {
                "description": "Defines the form of control of the mixing valve."
            },
            "OutletConnectionSize": {
                "description": "The size of the pipework connection from the mixing valve."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_ValveTypeMixing.xml"
    },
    "Pset_ValveTypePressureReducing": {
        "properties": {
            "DownstreamPressure": {
                "description": "The operating pressure of the fluid downstream of the pressure reducing valve"
            },
            "UpstreamPressure": {
                "description": "The operating pressure of the fluid upstream of the pressure reducing valve"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_ValveTypePressureReducing.xml"
    },
    "Pset_ValveTypePressureRelief": {
        "properties": {
            "ReliefPressure": {
                "description": "The pressure at which the spring or weight in the valve is set to discharge fluid"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_ValveTypePressureRelief.xml"
    },
    "Pset_VibrationIsolatorTypeCommon": {
        "properties": {
            "Height": {
                "description": "Height of the vibration isolator before tha application of load."
            },
            "IsolatorCompressibility": {
                "description": "The compressibility of the vibration isolator."
            },
            "IsolatorStaticDeflection": {
                "description": "Static deflection of the vibration isolator."
            },
            "Material": {
                "description": "Material from which the damping element of the vibration isolator is constructed."
            },
            "MaximumSupportedWeight": {
                "description": "The maximum weight that can be carried by the vibration isolator."
            },
            "VibrationTransmissibility": {
                "description": "The vibration transmissibility percentage."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcHvacDomain/Pset_VibrationIsolatorTypeCommon.xml"
    },
    "Pset_WallCommon": {
        "properties": {
            "AcousticRating": {
                "description": "Acoustic rating for this object. It is giving according to the national building code. It indicates the sound transmission resistance of this object by an index ration (instead of providing full sound absorbtion values)."
            },
            "Combustible": {
                "description": "Indication whether the object is made from combustible material (TRUE) or not (FALSE)."
            },
            "Compartmentation": {
                "description": "Indication whether the object is designed to serve as a fire compartmentation (TRUE) or not (FALSE)."
            },
            "ExtendToStructure": {
                "description": "Indicates whether the object extend to the structure above (TRUE) or not (FALSE)."
            },
            "FireRating": {
                "description": "Fire rating given according to the national fire safety classification."
            },
            "IsExternal": {
                "description": "Indication whether the element is designed for use in the exterior (TRUE) or not (FALSE). If (TRUE) it is an external element and faces the outside of the building."
            },
            "LoadBearing": {
                "description": "Indicates whether the object is intended to carry loads (TRUE) or not (FALSE)."
            },
            "Reference": {
                "description": "Reference ID for this specified type in this project (e.g. type 'A-1')"
            },
            "SurfaceSpreadOfFlame": {
                "description": "Indication on how the flames spread around the surface, It is given according to the national building code that governs the fire behaviour for materials."
            },
            "ThermalTransmittance": {
                "description": "Thermal transmittance coefficient (U-Value) of a material. Here the total thermal transmittance coefficient through the wall (including all materials)."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgElements/Pset_WallCommon.xml"
    },
    "Pset_WasteTerminalTypeFloorTrap": {
        "properties": {
            "BodyMaterial": {
                "description": "The primary material used to construct the object"
            },
            "CoverLength": {
                "description": "The length measured along the x-axis in the local coordinate system or the radius (in the case of a circular shape in plan) of the cover of the trap."
            },
            "CoverMaterial": {
                "description": "Material from which the cover or grating is constructed."
            },
            "CoverWidth": {
                "description": "The length measured along the y-axis in the local coordinate system of the cover of the  trap."
            },
            "HasStrainer": {
                "description": "Indicates whether the gully trap has a strainer (= TRUE) or not (= FALSE)"
            },
            "InletConnectionSize": {
                "description": "Size of the inlet connection(s), where used, of the inlet connections."
            },
            "InletPatternType": {
                "description": "Identifies the pattern of inlet connections to a trap."
            },
            "IsForSullageWater": {
                "description": "Indicates if the purpose of the floor trap is to receive sullage water, or if that is amongst its purposes (= TRUE), or not (= FALSE). Note that if TRUE, it is expected that an upstand or kerb will be placed around the floor trap to prevent the ingress of surface water runoff; the provision of the upstand or kerb is not dealt with in this property set."
            },
            "NominalBodyDepth": {
                "description": "Nominal or quoted length measured along the z-axis in the local coordinate system of the chamber of the  trap."
            },
            "NominalBodyLength": {
                "description": "Nominal or quoted length measured along the x-axis in the local coordinate system or the radius (in the case of a circular shape in plan) of the chamber of the trap."
            },
            "NominalBodyWidth": {
                "description": "Nominal or quoted length measured along the y-axis in the local coordinate system of the chamber of the trap."
            },
            "OutletConnectionSize": {
                "description": "Size of the outlet connection from the object"
            },
            "SpilloverLevel": {
                "description": "The level at which water spills out of the terminal."
            },
            "TrapType": {
                "description": "Identifies the predefined types of waste trap used in combination with the floor trap from which the type required may be set."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcPlumbingFireProtectionDomain/Pset_WasteTerminalTypeFloorTrap.xml"
    },
    "Pset_WasteTerminalTypeFloorWaste": {
        "properties": {
            "BodyMaterial": {
                "description": "The primary material used to construct the object"
            },
            "CoverLength": {
                "description": "The length measured along the x-axis in the local coordinate system or the radius (in the case of a circular shape in plan) of the cover of the waste."
            },
            "CoverMaterial": {
                "description": "Material from which the cover or grating is constructed."
            },
            "CoverWidth": {
                "description": "The length measured along the y-axis in the local coordinate system of the cover of the  waste."
            },
            "NominalBodyDepth": {
                "description": "Nominal or quoted length measured along the z-axis in the local coordinate system of the waste."
            },
            "NominalBodyLength": {
                "description": "Nominal or quoted length measured along the x-axis in the local coordinate system or the radius (in the case of a circular shape in plan) of the waste."
            },
            "NominalBodyWidth": {
                "description": "Nominal or quoted length measured along the y-axis in the local coordinate system of the waste."
            },
            "OutletConnectionSize": {
                "description": "Size of the outlet connection from the object"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcPlumbingFireProtectionDomain/Pset_WasteTerminalTypeFloorWaste.xml"
    },
    "Pset_WasteTerminalTypeGreaseInterceptor": {
        "properties": {
            "BodyDepth": {
                "description": "Nominal or quoted length, measured along the z-axis of the local coordinate system of the object, of the body of the object."
            },
            "CoverLength": {
                "description": "The length measured along the x-axis in the local coordinate system or the radius (in the case of a circular shape in plan) of the cover of the grease interceptor."
            },
            "CoverMaterial": {
                "description": "Material from which the cover is constructed."
            },
            "CoverWidth": {
                "description": "The length measured along the x-axis in the local coordinate system of the cover of the grease interceptor."
            },
            "InletConnectionSize": {
                "description": "Size of the inlet connection."
            },
            "NominalBodyLength": {
                "description": "Nominal or quoted length, measured along the x-axis of the local coordinate system of the object, of the body of the object."
            },
            "NominalBodyMaterial": {
                "description": "The material from which the object is constructed."
            },
            "NominalBodyWidth": {
                "description": "Nominal or quoted length, measured along the y-axis of the local coordinate system of the object, of the body of the object."
            },
            "OutletConnectionSize": {
                "description": "Size of the outlet connection."
            },
            "StrainerDepth": {
                "description": "Depth, measured in elevation view, of the strainer basket."
            },
            "StrainerDiameter": {
                "description": "Diameter, measured in plan view, of the strainer basket."
            },
            "StrainerMaterial": {
                "description": "Material from which the strainer is constructed."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcPlumbingFireProtectionDomain/Pset_WasteTerminalTypeGreaseInterceptor.xml"
    },
    "Pset_WasteTerminalTypeGullySump": {
        "properties": {
            "BackInletPatternType": {
                "description": "Identifies the pattern of inlet connections to a gully trap."
            },
            "CoverLength": {
                "description": "The length measured along the x-axis in the local coordinate system or the radius (in the case of a circular shape in plan) of the cover of the gully trap."
            },
            "CoverMaterial": {
                "description": "Material from which the object is constructed."
            },
            "CoverWidth": {
                "description": "The length measured along the y-axis in the local coordinate system of the cover of the gully trap."
            },
            "GullyType": {
                "description": "Identifies the predefined types of gully from which the type required may be set."
            },
            "InletConnectionSize": {
                "description": "Size of the inlet connection(s), where used, of the inlet connections."
            },
            "NominalSumpDepth": {
                "description": "Nominal or quoted length measured along the z-axis in the local coordinate system of the sump."
            },
            "NominalSumpLength": {
                "description": "Nominal or quoted length measured along the x-axis in the local coordinate system or the radius (in the case of a circular shape in plan) of the sump."
            },
            "NominalSumpWidth": {
                "description": "Nominal or quoted length measured along the y-axis in the local coordinate system of the sump."
            },
            "OutletConnectionSize": {
                "description": "Size of the outlet connection from the object"
            },
            "SumpMaterial": {
                "description": "The primary material used to construct the object"
            },
            "TrapType": {
                "description": "Identifies the predefined types of trap from which the type required may be set."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcPlumbingFireProtectionDomain/Pset_WasteTerminalTypeGullySump.xml"
    },
    "Pset_WasteTerminalTypeGullyTrap": {
        "properties": {
            "BackInletPatternType": {
                "description": "Identifies the pattern of inlet connections to a gully trap."
            },
            "BodyMaterial": {
                "description": "The primary material used to construct the object"
            },
            "CoverLength": {
                "description": "The length measured along the x-axis in the local coordinate system or the radius (in the case of a circular shape in plan) of the cover of the gully trap."
            },
            "CoverMaterial": {
                "description": "Material from which the object is constructed."
            },
            "CoverWidth": {
                "description": "The length measured along the y-axis in the local coordinate system of the cover of the gully trap."
            },
            "GullyType": {
                "description": "Identifies the predefined types of gully from which the type required may be set."
            },
            "HasStrainer": {
                "description": "Indicates whether the gully trap has a strainer (= TRUE) or not (= FALSE)"
            },
            "InletConnectionSize": {
                "description": "Size of the inlet connection(s), where used, of the inlet connections."
            },
            "NominalBodyDepth": {
                "description": "Nominal or quoted length measured along the z-axis in the local coordinate system of the chamber of the gully trap."
            },
            "NominalBodyLength": {
                "description": "Nominal or quoted length measured along the x-axis in the local coordinate system or the radius (in the case of a circular shape in plan) of the chamber of the gully trap."
            },
            "NominalBodyWidth": {
                "description": "Nominal or quoted length measured along the y-axis in the local coordinate system of the chamber of the gully trap."
            },
            "OutletConnectionSize": {
                "description": "Size of the outlet connection from the object"
            },
            "TrapType": {
                "description": "Identifies the predefined types of trap from which the type required may be set."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcPlumbingFireProtectionDomain/Pset_WasteTerminalTypeGullyTrap.xml"
    },
    "Pset_WasteTerminalTypeOilInterceptor": {
        "properties": {
            "BodyMaterial": {
                "description": "The material from which the object is constructed."
            },
            "CoverLength": {
                "description": "The length measured along the x-axis in the local coordinate system or the radius (in the case of a circular shape in plan) of the cover of the oil interceptor."
            },
            "CoverMaterial": {
                "description": "Material from which the cover is constructed."
            },
            "CoverWidth": {
                "description": "The length measured along the x-axis in the local coordinate system of the cover of the oil interceptor."
            },
            "InletConnectionSize": {
                "description": "Size of the inlet connection."
            },
            "NominalBodyDepth": {
                "description": "Nominal or quoted length, measured along the z-axis of the local coordinate system of the object, of the body of the object."
            },
            "NominalBodyLength": {
                "description": "Nominal or quoted length, measured along the x-axis of the local coordinate system of the object, of the body of the object."
            },
            "NominalBodyWidth": {
                "description": "Nominal or quoted length, measured along the y-axis of the local coordinate system of the object, of the body of the object."
            },
            "OutletConnectionSize": {
                "description": "Size of the outlet connection."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcPlumbingFireProtectionDomain/Pset_WasteTerminalTypeOilInterceptor.xml"
    },
    "Pset_WasteTerminalTypePetrolInterceptor": {
        "properties": {
            "BodyMaterial": {
                "description": "The material from which the object is constructed."
            },
            "CoverLength": {
                "description": "The length measured along the x-axis in the local coordinate system or the radius (in the case of a circular shape in plan) of the cover of the oil interceptor."
            },
            "CoverMaterial": {
                "description": "Material from which the cover is constructed."
            },
            "CoverWidth": {
                "description": "The length measured along the x-axis in the local coordinate system of the cover of the oil interceptor."
            },
            "InletConnectionSize": {
                "description": "Size of the inlet connection."
            },
            "NominalBodyDepth": {
                "description": "Nominal or quoted =length, measured along the z-axis of the local coordinate system of the object, of the body of the object."
            },
            "NominalBodyLength": {
                "description": "Nominal or quoted length, measured along the x-axis of the local coordinate system of the object, of the body of the object."
            },
            "NominalBodyWidth": {
                "description": "Nominal or quoted length, measured along the y-axis of the local coordinate system of the object, of the body of the object."
            },
            "OutletConnectionSize": {
                "description": "Size of the outlet connection."
            },
            "VentilatingPipeSize": {
                "description": "Size of the ventilating pipe(s)"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcPlumbingFireProtectionDomain/Pset_WasteTerminalTypePetrolInterceptor.xml"
    },
    "Pset_WasteTerminalTypeRoofDrain": {
        "properties": {
            "BodyMaterial": {
                "description": "The primary material used to construct the object"
            },
            "CoverLength": {
                "description": "The length measured along the x-axis in the local coordinate system or the radius (in the case of a circular shape in plan) of the cover of the drain."
            },
            "CoverMaterial": {
                "description": "Material from which the cover or grating is constructed."
            },
            "CoverWidth": {
                "description": "The length measured along the y-axis in the local coordinate system of the cover of the  drain."
            },
            "NominalBodyDepth": {
                "description": "Nominal or quoted length measured along the z-axis in the local coordinate system of the drain."
            },
            "NominalBodyLength": {
                "description": "Nominal or quoted length measured along the x-axis in the local coordinate system or the radius (in the case of a circular shape in plan) of the drain."
            },
            "NominalBodyWidth": {
                "description": "Nominal or quoted length measured along the y-axis in the local coordinate system of the drain."
            },
            "OutletConnectionSize": {
                "description": "Size of the outlet connection from the object"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcPlumbingFireProtectionDomain/Pset_WasteTerminalTypeRoofDrain.xml"
    },
    "Pset_WasteTerminalTypeWasteDisposalUnit": {
        "properties": {
            "DrainConnectionSize": {
                "description": "Size of the drain connection inlet to the waste disposal unit."
            },
            "NominalDepth": {
                "description": "Nominal or quoted depth of the object measured from the inlet drain connection to the base of the unit."
            },
            "OutletConnectionSize": {
                "description": "Size of the outlet connection from the waste disposal unit"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcPlumbingFireProtectionDomain/Pset_WasteTerminalTypeWasteDisposalUnit.xml"
    },
    "Pset_WasteTerminalTypeWasteTrap": {
        "properties": {
            "InletConnectionSize": {
                "description": "Size of the inlet connection(s), where used, of the inlet connections."
            },
            "OutletConnectionSize": {
                "description": "Size of the outlet connection from the object"
            },
            "WasteTrapType": {
                "description": "Identifies the predefined types of trap from which the type required may be set."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcPlumbingFireProtectionDomain/Pset_WasteTerminalTypeWasteTrap.xml"
    },
    "Pset_WindowCommon": {
        "properties": {
            "AcousticRating": {
                "description": "Acoustic rating for this object. It is giving according to the national building code. It indicates the sound transmission resistance of this object by an index ration (instead of providing full sound absorbtion values)."
            },
            "FireRating": {
                "description": "Fire rating for this object. It is given according to the national fire safety classification."
            },
            "GlazingAreaFraction": {
                "description": "Fraction of the glazing area relative to the total area of the filling element.  It shall be used, if the glazing area is not given separately for all panels within the filling element."
            },
            "Infiltration": {
                "description": "Infiltration flowrate of outside air for the filler object based on the area of the filler object at a pressure level of 50 Pascals. It shall be used, if the length of all joints is unknown."
            },
            "IsExternal": {
                "description": "Indication whether the element is designed for use in the exterior (TRUE) or not (FALSE). If (TRUE) it is an external element and faces the outside of the building."
            },
            "Reference": {
                "description": "Reference ID for this specified type in this project (e.g. type 'A-1')"
            },
            "SecurityRating": {
                "description": "Index based rating system indicating security level. It is giving according to the national building code."
            },
            "SmokeStop": {
                "description": "Indication whether the object is designed to provide a smoke stop (TRUE) or not (FALSE)."
            },
            "ThermalTransmittance": {
                "description": "Thermal transmittance coefficient (U-Value) of a material. It applies to the total door construction."
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcSharedBldgElements/Pset_WindowCommon.xml"
    },
    "Pset_ZoneCommon": {
        "properties": {
            "Category": {
                "description": "Category of space usage or utilization of the area. It is defined according to the presiding national building code."
            },
            "GrossAreaPlanned": {
                "description": "Total planned gross area for the space. Used for programming the space."
            },
            "HandicapAccessible": {
                "description": "Indication whether this space (in case of e.g., a toilet) is designed to serve as an accessible space for handicapped people, e.g., for a public toilet (TRUE) or not (FALSE). This information is often used to declare the need for access for the disabled and for special design requirements of this space."
            },
            "NetAreaPlanned": {
                "description": "Total planned net area for the space. Used for programming the space."
            },
            "PubliclyAccessible": {
                "description": "Indication whether this space (in case of e.g., a toilet) is designed to serve as a publicly accessible space, e.g., for a public toilet (TRUE) or not (FALSE)."
            },
            "Reference": {
                "description": "Reference ID for this specified type in this project (e.g. type 'A-1')"
            }
        },
        "spec_url": "https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/psd/IfcProductExtension/Pset_ZoneCommon.xml"
    }
}