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Manganese ores, concentrates and agglomerates. Methods for the determination of manganese dioxide
Document status: Replaced by GOST 22772.3-96
Non-metallic ore materials. General requirements for methods of analysis
Document status: Active
Butt welded steel flanges of vessels and apparatus. Design and dimensions
Document status: Replaced by GOST 28759.3-2022
Chalk. Method for determination of calcium carbonate and magnesium carbonate mass fraction
Document status: Active