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Petroleum and natural gas industries. Drilling and production equipment. Wellhead and Christmas tree equipment. General specifications
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Raremetallic concentrates. Method for the determination of sulphur
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Gaseous halogenated hydrocarbons (liquefied gases). Taking of a sample
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Maleic anhydride for industrial use. Methods of test. Part 3. Determination of free acidity. Potentiometric method
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