#### IfcUnitEnum

Natural language names

##### Semantic definitions at the type

Type definition

An enumeration type for allowed unit types of IfcNamedUnit.

ENUMERATION

- ABSORBEDDOSEUNIT
- AMOUNTOFSUBSTANCEUNIT
- AREAUNIT
- DOSEEQUIVALENTUNIT
- ELECTRICCAPACITANCEUNIT
- ELECTRICCHARGEUNIT
- ELECTRICCONDUCTANCEUNIT
- ELECTRICCURRENTUNIT
- ELECTRICRESISTANCEUNIT
- ELECTRICVOLTAGEUNIT
- ENERGYUNIT
- FORCEUNIT
- FREQUENCYUNIT
- ILLUMINANCEUNIT
- INDUCTANCEUNIT
- LENGTHUNIT
- LUMINOUSFLUXUNIT
- LUMINOUSINTENSITYUNIT
- MAGNETICFLUXDENSITYUNIT
- MAGNETICFLUXUNIT
- MASSUNIT
- PLANEANGLEUNIT
- POWERUNIT
- PRESSUREUNIT
- RADIOACTIVITYUNIT
- SOLIDANGLEUNIT
- THERMODYNAMICTEMPERATUREUNIT
- TIMEUNIT
- VOLUMEUNIT
- USERDEFINED User defined unit.

> HISTORY New type in IFC Release 1.5.1.

Enumeration definition

Constant | Description
--- | ---
ABSORBEDDOSEUNIT |
AMOUNTOFSUBSTANCEUNIT |
AREAUNIT |
DOSEEQUIVALENTUNIT |
ELECTRICCAPACITANCEUNIT |
ELECTRICCHARGEUNIT |
ELECTRICCONDUCTANCEUNIT |
ELECTRICCURRENTUNIT |
ELECTRICRESISTANCEUNIT |
ELECTRICVOLTAGEUNIT |
ENERGYUNIT |
FORCEUNIT |
FREQUENCYUNIT |
ILLUMINANCEUNIT |
INDUCTANCEUNIT |
LENGTHUNIT |
LUMINOUSFLUXUNIT |
LUMINOUSINTENSITYUNIT |
MAGNETICFLUXDENSITYUNIT |
MAGNETICFLUXUNIT |
MASSUNIT |
PLANEANGLEUNIT |
POWERUNIT |
PRESSUREUNIT |
RADIOACTIVITYUNIT |
SOLIDANGLEUNIT |
THERMODYNAMICTEMPERATUREUNIT |
TIMEUNIT |
VOLUMEUNIT |
USERDEFINED |

##### Formal representations

XSD Specification
`<xs:simpleType name="IfcUnitEnum">
<xs:restriction base="xs:string">
<xs:enumeration value="absorbeddoseunit"/>
<xs:enumeration value="amountofsubstanceunit"/>
<xs:enumeration value="areaunit"/>
<xs:enumeration value="doseequivalentunit"/>
<xs:enumeration value="electriccapacitanceunit"/>
<xs:enumeration value="electricchargeunit"/>
<xs:enumeration value="electricconductanceunit"/>
<xs:enumeration value="electriccurrentunit"/>
<xs:enumeration value="electricresistanceunit"/>
<xs:enumeration value="electricvoltageunit"/>
<xs:enumeration value="energyunit"/>
<xs:enumeration value="forceunit"/>
<xs:enumeration value="frequencyunit"/>
<xs:enumeration value="illuminanceunit"/>
<xs:enumeration value="inductanceunit"/>
<xs:enumeration value="lengthunit"/>
<xs:enumeration value="luminousfluxunit"/>
<xs:enumeration value="luminousintensityunit"/>
<xs:enumeration value="magneticfluxdensityunit"/>
<xs:enumeration value="magneticfluxunit"/>
<xs:enumeration value="massunit"/>
<xs:enumeration value="planeangleunit"/>
<xs:enumeration value="powerunit"/>
<xs:enumeration value="pressureunit"/>
<xs:enumeration value="radioactivityunit"/>
<xs:enumeration value="solidangleunit"/>
<xs:enumeration value="thermodynamictemperatureunit"/>
<xs:enumeration value="timeunit"/>
<xs:enumeration value="volumeunit"/>
<xs:enumeration value="userdefined"/>
</xs:restriction>
</xs:simpleType>
`
EXPRESS Specification
`TYPE IfcUnitEnum = ENUMERATION OF (
ABSORBEDDOSEUNIT,
AMOUNTOFSUBSTANCEUNIT,
AREAUNIT,
DOSEEQUIVALENTUNIT,
ELECTRICCAPACITANCEUNIT,
ELECTRICCHARGEUNIT,
ELECTRICCONDUCTANCEUNIT,
ELECTRICCURRENTUNIT,
ELECTRICRESISTANCEUNIT,
ELECTRICVOLTAGEUNIT,
ENERGYUNIT,
FORCEUNIT,
FREQUENCYUNIT,
ILLUMINANCEUNIT,
INDUCTANCEUNIT,
LENGTHUNIT,
LUMINOUSFLUXUNIT,
LUMINOUSINTENSITYUNIT,
MAGNETICFLUXDENSITYUNIT,
MAGNETICFLUXUNIT,
MASSUNIT,
PLANEANGLEUNIT,
POWERUNIT,
PRESSUREUNIT,
RADIOACTIVITYUNIT,
SOLIDANGLEUNIT,
THERMODYNAMICTEMPERATUREUNIT,
TIMEUNIT,
VOLUMEUNIT,
USERDEFINED);
END_TYPE;

EXPRESS-G diagram

`

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