The temperature rate of change measures the difference of a temperature per time (positive: rise, negative: fall), as for instance used with heat sensors. It is for example measured in K/s (Kelvin per second).

Type: REAL

HISTORY  New type in IFC4.

XSD Specification:

 <xs:simpleType name="IfcTemperatureRateOfChangeMeasure">
  <xs:restriction base="xs:double"/>
 <xs:element name="IfcTemperatureRateOfChangeMeasure-wrapper" nillable="true">
    <xs:extension base="ifc:IfcTemperatureRateOfChangeMeasure">
     <xs:attributeGroup ref="ifc:instanceAttributes"/>

EXPRESS Specification:

TYPE IfcTemperatureRateOfChangeMeasure = REAL;

Link to EXPRESS-G diagram EXPRESS-G diagram

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