IfcSIPrefix

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.

ENUMERATION

EXA 10^18.
PETA 10^15.
TERA 10^12.
GIGA 10^9.
MEGA 10^6.
KILO 10^3.
HECTO 10^2.
DECA 10.
DECI 10^-1.
CENTI 10^-2.
MILLI 10^-3.
MICRO 10^-6.
NANO 10^-9.
PICO 10^-12.
FEMTO 10^-15.
ATTO 10^-18.

EXPRESS specification:

TYPE IfcSIPrefix = ENUMERATION OF

(	EXA, PETA, TERA, GIGA, MEGA, KILO, HECTO, DECA, DECI, CENTI, MILLI, MICRO, NANO, PICO, FEMTO, ATTO);

END_TYPE;

References (1):

Name

Type

Referred through

Express-G

IfcSIUnit

Entity

Attribute 'Prefix'

Diagram 1