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Graphite. General requirements for methods of analysis
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Surface-active agents. Method for determination of biodegradability rate in aquatic environment
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Dissolved acetylene and gaseous acetylene for technical purposes. Specifications
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Manganese ores, concentrates and agglomerates. Methods for determination of sulphur
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Iron ores, concentrates, agglomerates and pellets. Methods of sampling and preparation of samples for physical tests
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