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Tungsten concentrate. Determination of copper and lead by atomic-absorption method

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Copper and complex ores, and products of their processing. Methods of measurement of copper weight fraction

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Reagents. Ammonia water. Specifications

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Natural and synthetic combustible gases. Method for determination of volume fraction of components using a set of gas analyzers (SGA)

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Iron ores. Determination of reducibility

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Reagents. Ammonium persulphate. Specifications

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