IfcSIUnitName

Semantic definitions at the type

Type definition

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.

HISTORY New entity in IFC1.5.1.

Enumeration definition

Constant	Description
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.

Formal representations

XML 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;


 EXPRESS-G diagram

	SI Einheit - Bezeichnung
	SIUnit Name
	Nom d'unité du système international