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Natural combustible gas. Energy determination

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Concentrated kaolin. Determination of size distribution

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Gaseous halogenated hydrocarbons (liquefied gases). Taking of a sample

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Maleic anhydride for industrial use. Methods of test. Part 3. Determination of free acidity. Potentiometric method

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Zink concentrates. Atomic absorption method for determination of arsenic

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Benzene hydrocarbons and allied products. Method of determination of benzene freezing point

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