# THERMALCONDUCTIVITYUNIT in IfcDerivedUnitEnum

**URL:** <https://forums.buildingsmart.org/t/thermalconductivityunit-in-ifcderivedunitenum/3158>\
**Category:** Uncategorized\
**Created:** [November 30, 2020, 10:44am UTC](https://forums.buildingsmart.org/t/thermalconductivityunit-in-ifcderivedunitenum/3158 "2020-11-30T10:44:25Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Ilya](https://avatars.discourse-cdn.com/v4/letter/i/58f4c7/32.png) [@Ilya](https://forums.buildingsmart.org/u/Ilya)\
**Post date:** [November 30, 2020, 10:44am UTC](https://forums.buildingsmart.org/t/thermalconductivityunit-in-ifcderivedunitenum/3158/1 "2020-11-30T10:44:25Z")

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The documentation indicates the existence of THERMALCONDUCTIVITYUNIT in IfcDerivedUnitEnum. In reality, there is no such value in the scheme in IfcDerivedUnitEnum. Is it an error in the schema or in the documentation?

 ![ThermalConductivity](https://us1.discourse-cdn.com/flex016/uploads/buildingsmart1/original/2X/9/9edf192cd8deae37dd963d2cce20ff6b3062b0b5.png)