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See Chinese contents: GB/T 33609-2017 GB/T 33609-2017: Flexible cellular polymeric materials -- Determination of hysteresis loss
This standard specifies two test methods for determining the hysteresis loss properties of flexible cellular polymeric materials. - Method A: Determination of hysteresis loss by compression method; - Method B: Determination of hysteresis loss by depression method. This standard applies to the determination of hysteresis loss of flexible cellular polymeric materials. Method A and method B in this standard are applicable to standard size specimens, which are cut from block materials or molded specimens with various shapes; method B is also applicable to molded products with various shapes.
