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IfcSIPrefix

Definition from ISO/CD 10303-41:1992: An SI prefix is the name of a prefix that may be associated with an SI unit. The definitions of SI prefixes are specified in ISO 1000 (clause 3).

NOTE The prefix defines multiples and submultiples of the SI units.
NOTE Corresponding STEP name: SI_prefix, please refer to ISO/IS 10303-41:1994 for the final definition of the formal standard.

ENUMERATION

HISTORY New entity in IFC Release 1.5.1.

EXPRESS specification:

TYPE IfcSIPrefix = ENUMERATION OF
( EXA,
PETA,
TERA,
GIGA,
MEGA,
KILO,
HECTO,
DECA,
DECI,
CENTI,
MILLI,
MICRO,
NANO,
PICO,
FEMTO,
ATTO);
END_TYPE;