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Benzene hydrocarbons and allied products. Method of determination of sulphurizing substances content
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Reagents. Sodium dihydrogen phosphate dehydrate. Specifications
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Petroleum and natural gas industries. Downhole equipment. Subsurface safety valve equipment. General technical requirements
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Manganese ores, concentrates and agglomerates. Method for determination of mass loss on ignition
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Reagents. Methods of preparation of standard volumetric solutions for redox titration
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