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Humic substances from brown coals, lignites and oxidized coals. Methods of tests
Document status: Active
Reagents. Method for the determination of ammonium impurity
Document status: Replaced by GOST 24245-2016
Vessels and apparatuses. Spherical non-sided heads and bottoms. Norms and methods of strength calculation
Document status: Active
Additives and oils containing additives. Method for determination of chlorine
Document status: Active