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Gas and aerosol analyzers for air pollution monitoring. General specifications

Document status: Active

Concentrated kaolin. Method for determination of hydrogen ions concentration of water suspension

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Reagents. Mercury (II) nitrate monohydrate. Specifications

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Chromium ores and concentrates. Methods for determination of aluminium oxide

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Liquefied anhydrous ammonia for industrial use. Determination of water content. Gas chromatographic method

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Clay raw materials. Method for determination of fraction retained on sieve N 0063

Document status: Replaced by GOST 21216-2014