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Chalk. Method for determination of calcium carbonate and magnesium carbonate mass fraction
Document status: Active
Equipment and components intended for use in potentially explosive atmospheres in underground mines
Document status: Cancelled
The Caucasus coals for stratified burning. Specifications
Document status: Withdrawn
Clay raw materials. Method for determination of calcium and magnesium in water extract
Document status: Replaced by GOST 21216-2014
Heading machines having cutter heads mounted on booms. Test methods
Document status: Replaced by GOST R 50703-2002