22.214.171.124.1 Semantic definition
IfcThermalExpansionCoeffientMeasure is a measure of the thermal expansion coefficient of a material, which expresses its elongation (as a ratio) per temperature difference. It is usually measured in 1/K. A positive elongation per (positive) rise of temperature is expressed by a positive value.
126.96.36.199.2 Formal representation
TYPE IfcThermalExpansionCoefficientMeasure = REAL; END_TYPE;