Defined in File Ifc4x3_rc1.h
IfcPHMeasure: public IfcUtil::IfcBaseType¶
IfcPHMeasure is a measure of the molar hydrogen ion concentration in a liquid (usually defined as the measure of acidity) in a range from 0 to 14.
HISTORY: New type in IFC 2x2.
operator double() const¶