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Natural gas. Determination of composition with defined uncertainty by gas chromatography method. Part 6. Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and C1 to C8 hydrocarbons using three capillary columns
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Petroleum bitumens. Method for determination of Fraas break point
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Carbonaceous materials for the production of aluminium. Baked anodes. Determination of the air permeability
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Surface active agents. Technical alkane sulfonates. Determination of alkane monosulfonates content by direct two-phase titration
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