BS 7134-3.5:1989 - Testing of engineering ceramics. Thermo-mechanical properties - Methods for determination of pyroplastic deformation (sagging)
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This standard specifies methods for determining pyroplastic deformation, commonly known as sagging, in engineering ceramics when subjected to high temperatures. It forms part of the BS 7134 series, which outlines testing procedures for evaluating various properties of ceramic materials.
Test specimens; Dimensional measurement; Plastic deformation; Testing conditions; Sag (deformation); Heating tests; Ceramics; Special ceramics; Thermal testing; Test equipment