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Copper and complex ores and products of their processing. Methods of zinc weight fraction measurement
Document status: Active
Phosphorus and inorganic phosphorus compounds. Method of whiteness degree determination
Document status: Active
State system for ensuring the uniformity of measurements. Homogeneity of powdered certified reference materials of content. Measurement procedure
Document status: Replaced by GOST 8.531-2002
Talc and talcomagnesite. Method for determination of titanium oxide
Document status: Active