Formal representations
XSD Specification
<xs:simpleType name="IfcDerivedUnitEnum">
<xs:restriction base="xs:string">
<xs:enumeration value="angularvelocityunit"/>
<xs:enumeration value="compoundplaneangleunit"/>
<xs:enumeration value="dynamicviscosityunit"/>
<xs:enumeration value="heatfluxdensityunit"/>
<xs:enumeration value="integercountrateunit"/>
<xs:enumeration value="isothermalmoisturecapacityunit"/>
<xs:enumeration value="kinematicviscosityunit"/>
<xs:enumeration value="linearvelocityunit"/>
<xs:enumeration value="massdensityunit"/>
<xs:enumeration value="massflowrateunit"/>
<xs:enumeration value="moisturediffusivityunit"/>
<xs:enumeration value="molecularweightunit"/>
<xs:enumeration value="specificheatcapacityunit"/>
<xs:enumeration value="thermaladmittanceunit"/>
<xs:enumeration value="thermalconductanceunit"/>
<xs:enumeration value="thermalresistanceunit"/>
<xs:enumeration value="thermaltransmittanceunit"/>
<xs:enumeration value="vaporpermeabilityunit"/>
<xs:enumeration value="volumetricflowrateunit"/>
<xs:enumeration value="rotationalfrequencyunit"/>
<xs:enumeration value="torqueunit"/>
<xs:enumeration value="momentofinertiaunit"/>
<xs:enumeration value="linearmomentunit"/>
<xs:enumeration value="linearforceunit"/>
<xs:enumeration value="planarforceunit"/>
<xs:enumeration value="modulusofelasticityunit"/>
<xs:enumeration value="shearmodulusunit"/>
<xs:enumeration value="linearstiffnessunit"/>
<xs:enumeration value="rotationalstiffnessunit"/>
<xs:enumeration value="modulusofsubgradereactionunit"/>
<xs:enumeration value="accelerationunit"/>
<xs:enumeration value="curvatureunit"/>
<xs:enumeration value="heatingvalueunit"/>
<xs:enumeration value="ionconcentrationunit"/>
<xs:enumeration value="luminousintensitydistributionunit"/>
<xs:enumeration value="massperlengthunit"/>
<xs:enumeration value="modulusoflinearsubgradereactionunit"/>
<xs:enumeration value="modulusofrotationalsubgradereactionunit"/>
<xs:enumeration value="phunit"/>
<xs:enumeration value="rotationalmassunit"/>
<xs:enumeration value="sectionareaintegralunit"/>
<xs:enumeration value="sectionmodulusunit"/>
<xs:enumeration value="soundpowerunit"/>
<xs:enumeration value="soundpressureunit"/>
<xs:enumeration value="temperaturegradientunit"/>
<xs:enumeration value="thermalexpansioncoefficientunit"/>
<xs:enumeration value="warpingconstantunit"/>
<xs:enumeration value="warpingmomentunit"/>
<xs:enumeration value="userdefined"/>
</xs:restriction>
</xs:simpleType>
EXPRESS Specification
TYPE IfcDerivedUnitEnum = ENUMERATION OF (
ANGULARVELOCITYUNIT,
COMPOUNDPLANEANGLEUNIT,
DYNAMICVISCOSITYUNIT,
HEATFLUXDENSITYUNIT,
INTEGERCOUNTRATEUNIT,
ISOTHERMALMOISTURECAPACITYUNIT,
KINEMATICVISCOSITYUNIT,
LINEARVELOCITYUNIT,
MASSDENSITYUNIT,
MASSFLOWRATEUNIT,
MOISTUREDIFFUSIVITYUNIT,
MOLECULARWEIGHTUNIT,
SPECIFICHEATCAPACITYUNIT,
THERMALADMITTANCEUNIT,
THERMALCONDUCTANCEUNIT,
THERMALRESISTANCEUNIT,
THERMALTRANSMITTANCEUNIT,
VAPORPERMEABILITYUNIT,
VOLUMETRICFLOWRATEUNIT,
ROTATIONALFREQUENCYUNIT,
TORQUEUNIT,
MOMENTOFINERTIAUNIT,
LINEARMOMENTUNIT,
LINEARFORCEUNIT,
PLANARFORCEUNIT,
MODULUSOFELASTICITYUNIT,
SHEARMODULUSUNIT,
LINEARSTIFFNESSUNIT,
ROTATIONALSTIFFNESSUNIT,
MODULUSOFSUBGRADEREACTIONUNIT,
ACCELERATIONUNIT,
CURVATUREUNIT,
HEATINGVALUEUNIT,
IONCONCENTRATIONUNIT,
LUMINOUSINTENSITYDISTRIBUTIONUNIT,
MASSPERLENGTHUNIT,
MODULUSOFLINEARSUBGRADEREACTIONUNIT,
MODULUSOFROTATIONALSUBGRADEREACTIONUNIT,
PHUNIT,
ROTATIONALMASSUNIT,
SECTIONAREAINTEGRALUNIT,
SECTIONMODULUSUNIT,
SOUNDPOWERUNIT,
SOUNDPRESSUREUNIT,
TEMPERATUREGRADIENTUNIT,
THERMALEXPANSIONCOEFFICIENTUNIT,
WARPINGCONSTANTUNIT,
WARPINGMOMENTUNIT,
USERDEFINED);
END_TYPE;
EXPRESS-G diagram
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