IFC 4.3.0.1 (IFC4X3) development

# 8.17.3.7 IfcQuantityNumber

## 8.17.3.7.1 Semantic definition

IfcQuantityNumber is a physical quantity that defines a derived number measure (integer or non-integer) to provide an element's physical property. It is normally derived from the physical properties of the element under the specific measure rules given by a method of measurement.

## 8.17.3.7.4 Formal representation

ENTITY IfcQuantityNumber
SUBTYPE OF (IfcPhysicalSimpleQuantity);
NumberValue : IfcNumericMeasure;
Formula : OPTIONAL IfcLabel;
END_ENTITY;