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See Chinese contents: GB/T 22271.2-2021 GB/T 22271.2-2021: Plastics -- Polyoxymethylene(POM) moulding and extrusion materials -- Part 2: Preparation of test specimens and determination of properties
This document specifies methods for the preparation of test specimens AND the determination of properties, for polyoxymethylene molding and extrusion materials. This document specifies the handling of the tested material, as well as the state conditioning requirements for the tested material prior to molding and the specimen prior to testing. This document specifies the methods and conditions for specimen preparation, as well as the method for measuring the specimen.
