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Graphite. Method for determination of hydrogen ions concentration of water suspension and water extract

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Reagents. Chromic (III) nitrate nonahydrate. Specifications

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Reagents. Aluminium hydroxide. Specifications

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Coals and anthracite. Determination method for microhardness and microbrittleness

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Ozonization equipment. Safety requirements

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Instantaneous electric detonators. Specifications

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