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Oxidized brown coals of the Far East. Classification

Document status: Replaced by GOST 14834-2014

Reagents. Ammonium ferrous sulphate. Specifications

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Reagents. Sodium tungstate 2-aqueous. Specifications

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Petroleum and petroleum products. Methods of sampling

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Brown coals, hard coals and anthracites. Classification by ranks and classes according to reflectance index of vitrinite

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Liquefied petroleum gases. Detection of hydrogen sulfide. Lead acetate method

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