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Methods for the petrographic analysis of coals. Part 3. Method of determining maceral group composition

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Vessels and apparatus. Series of diameters

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Hard coal. Determination of plastic properties by Gieseler plastometer method

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Silicoorganic liquids 132-24 and 132-25. Specifications

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Ammonium molybdate. Specifications

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Camphene technical. Specifications

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