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Iron ores, concentrates, agglomerates and pellets. Methods for determination of phosphorus
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Bitumens and bituminous binders. Characterization of perceptible properties
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Brown coals, hard coals and anthracites. Classification by ranks and classes according to reflectance index of vitrinite
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Manganese ores concentrates and agglomerates. Methods of sampling and sample preparation for the determination of the grain composition
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