En iso 75 1

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Scope: Heat deflection temperature is defined as the temperature at which a standard test bar deflects a specified distance under a load.

It is used to determine short-term heat resistance. It distinguishes between materials that are able to sustain light loads at high temperatures and those that lose rigidity over a narrow temperature range.

Test Procedure: The bars are placed under the deflection measuring device. A load of 0. ISO edgewise testing uses a bar mm x 10mm x 4mm. ISO flatwise testing uses a bar 80mm x 10mm x 4mm. Data: Temperature at the specified load and deflection. Due to copyright restrictions, we are not able to provide copies of standards. Standards can be obtained from appropriate standards authorities. Intertek Global Website.