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Ethanol for industrial use. Methods of test. Estimation of content of carbonyl compounds present in moderate amounts. Titrimetric method

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Air-cooled apparatus. General technical requirements

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Rutile concentrate. Specification

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Reagents. Aminoacetic acid. Specifications

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Reagents. Potassium nitrite. Specifications

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Gas analyzers. Dimensions for threaded joints and hose couplings

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