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Manganese ores, concentrates and agglomerates. Methods for determination of sulphur

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Industrial explosives. Test methods in methane air and dust air mixtures

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Used petroleum products. Method for determination of water

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Non-metallic ore materials. Preparation of standard solutions and solutions for blank tests

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Oil and gas wells. Geological-technological logging. General requirements

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Petroleum and natural gas industries. Packaged reciprocating gas compressor. Technical requirements

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