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Standard Practice for Production of Coal, Coke and Coal Combustion Samples for Interlaboratory Studies
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Portable rock drills. Drill rod shanks and chucks. Types and dimensions
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Steel enamelled collectors. Types, basic parameters and dimensions
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Iron ores, concentrates, agglomerates and pellets. Method for determination of moisture
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Niobium pentoxide. Method for the determination of potassium and sodium content
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Petroleum Products. lubricating oils and additives. Determination of sulphated ash
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