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Petroleum oils. Test for soda reaction from petroleum oils. Photoelectric colorimeter method
Document status: Active
Petroleum bitumens. Method of separation into four fractions
Document status: Active
Carbonaceous materials used in the production of aluminium. Cokes for electrodes. Sampling
Document status: Active
Alumina. Methods for the decomposition of test sample and the preparation of test solution
Document status: Replaced by GOST R 50332.1-2019