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Natural gas. Determination of composition with defined uncertainty by gas chromatography method. Part 4. Determination of nitrogen, carbon dioxide and C1 to C5 and C6+ hydrocarbons for a laboratory and on-line measuring system using two columns
Document status: Active
Sulphur for industrial use. Determination of total carbon content. Titrimetric method
Document status: Active
Reagents. Bismuth (III) nitrate pentahydrate. Specifications
Document status: Active
Hard-metals bits for core exploratory drilling in medium hard. Specifications
Document status: Active
Motor fuel. Method for determination of existent gums
Document status: Replaced by GOST 1567-97