Density (Specific Gravity) - an overview ScienceDirect ...
E. Alfredo Campo in Selection of Polymeric Materials 2008. 5.4 Specific Gravity Testing (ASTM D-792) Specific gravity is the ratio of the weight of a given volume of material at 73°F (23°C) to that of an equal volume of water at the same temperature. It is properly expressed as "specific gravity 23/23°C."
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