IfcSIUnitName

8.5.2.11 IfcSIUnitName

NOTE Definition according to ISO/CD 10303-41:1992
An SI unit name is the name of an SI unit. The definitions of the names of SI units are specified in ISO 1000 (clause 2).

NOTE Type adapted from si_unit_name defined in ISO 10303-41.

Enumerated Item Definitions:

AMPERE: Unit for electric current.
BECQUEREL: Unit for radioactivity.
CANDELA: Unit for luminousintensity.
COULOMB: Unit for electric charge.
CUBIC_METRE: Unit for volume.
DEGREE_CELSIUS: Unit for thermodynamic temperature.
FARAD: Unit for electric capacitance.
GRAM: Unit for mass.
GRAY: Unit for absorbed radioactive dose.
HENRY: Unit for inductance.
HERTZ: Unit for frequency.
JOULE: Unit for energy.
KELVIN: Unit for thermodynamic temperature.
LUMEN: Unit for luminous flux.
LUX: Unit for illuminance.
METRE: Unit for length.
MOLE: Unit for amount of substance.
NEWTON: Unit for force.
OHM: Unit for electric resistance.
PASCAL: Unit for pressure.
RADIAN: Unit for plane angle.
SECOND: Unit for time.
SIEMENS: Unit for electric conductance.
SIEVERT: Unit for radioactive dose equivalent.
SQUARE_METRE: Unit for area.
STERADIAN: Unit for solid angle.
TESLA: Unit for magnetic flux density.
VOLT: Unit for electric voltage.
WATT: Unit for power.
WEBER: Unit for magnetic flux.

HISTORY New entity in IFC1.5.1.

XSD Specification:

<xs:simpleType name="IfcSIUnitName">
  <xs:restriction base="xs:string">
   <xs:enumeration value="ampere"/>
   <xs:enumeration value="becquerel"/>
   <xs:enumeration value="candela"/>
   <xs:enumeration value="coulomb"/>
   <xs:enumeration value="cubic_metre"/>
   <xs:enumeration value="degree_celsius"/>
   <xs:enumeration value="farad"/>
   <xs:enumeration value="gram"/>
   <xs:enumeration value="gray"/>
   <xs:enumeration value="henry"/>
   <xs:enumeration value="hertz"/>
   <xs:enumeration value="joule"/>
   <xs:enumeration value="kelvin"/>
   <xs:enumeration value="lumen"/>
   <xs:enumeration value="lux"/>
   <xs:enumeration value="metre"/>
   <xs:enumeration value="mole"/>
   <xs:enumeration value="newton"/>
   <xs:enumeration value="ohm"/>
   <xs:enumeration value="pascal"/>
   <xs:enumeration value="radian"/>
   <xs:enumeration value="second"/>
   <xs:enumeration value="siemens"/>
   <xs:enumeration value="sievert"/>
   <xs:enumeration value="square_metre"/>
   <xs:enumeration value="steradian"/>
   <xs:enumeration value="tesla"/>
   <xs:enumeration value="volt"/>
   <xs:enumeration value="watt"/>
   <xs:enumeration value="weber"/>
  </xs:restriction>
</xs:simpleType>

EXPRESS Specification:

TYPE IfcSIUnitName = ENUMERATION OF (

AMPERE,
BECQUEREL,
CANDELA,
COULOMB,
CUBIC_METRE,
DEGREE_CELSIUS,
FARAD,
GRAM,
GRAY,
HENRY,
HERTZ,
JOULE,
KELVIN,
LUMEN,
LUX,
METRE,
MOLE,
NEWTON,
OHM,
PASCAL,
RADIAN,
SECOND,
SIEMENS,
SIEVERT,
SQUARE_METRE,
STERADIAN,
TESLA,
VOLT,
WATT,
WEBER);

END_TYPE;

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