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Reagents. Potassium-sodium tartrate 4-aqueous. Specifications

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Quartz sand, ground sandstone, quartzite and veiny quartz for glass industry. Methods for determination of aluminium oxide

Document status: Replaced by GOST 22552.3-2019

Natural gas. Determination of composition with defined uncertainty by gas chromatography method. Part 3. Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and hydrocarbons up to C8 using two packed columns

Document status: Replaced by GOST 31371.3-2025

Manganese ores, concentrates and agglomerates. Method for determination of hygroscopic moisture

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Petroleum asphalts. Determination of viscosity at elevated temperatures using a rotational viscometer

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Petroleum and natural gas industries. Downhole equipment. Sand screens liquid centrifugal separators. General technical requirements

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