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Bag and pocket filters. Type and basic parameters

Document status: Active

Testing methods for chemicals of environmental hazard. Soil microorganisms: carbon transformation test

Document status: Active

Reagents. Sodium nitrate. Specifications

Document status: Active

Natural combustible gases. Methods for determination of hydrogen sulphide and sulphur mercaptan

Document status: Replaced by GOST 22387.2-97

Technical 1-naphthol -2-carboxylic acid. Specifications

Document status: Active

Compressed-air dryers. Specifications and test methods

Document status: Active