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This document specifies methods for determining, in iron, copper, tin and bronze powders, the approximate content of non-metallic materials which are insoluble in the ordinary mineral acids. This document has been prepared by Technical Committee ISO/TC 119 "Powder metallurgy", Subcommittee SC 2 "Sampling and testing methods for powders (including powders for hardmetals)". The responsible national standardization is Working Committee NA 145-01-02 AA "Probenahme und Prüfverfahren für Pulver (einschließlich Pulver für Hartmetalle)" ("Sampling and testing methods for powders (including powders for hardmetals)") at DIN Standards Committee Technology of Materials (NWT).
This document replaces DIN ISO 4496:1987-08 .