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Raremetallic concentrates. Methods for the determination of niobium pentoxide

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Used petroleum products. Method for determination of mechanical impurities and contaminant

Document status: Replaced by GOST 26378.2-2015

Fuel oils. Determination of hydrogen sulfide

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Emulsols and pastes. Test methods

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Active carbon AG-2. Specifications

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Tungsten concentrate. Spectrum method of determination of calcium oxide content

Document status: Active