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Unused lubricating base oils and asphaltene free petroleum fractions. Determination of polycyclic aromatics by dimethyl sulphoxide extraction method and refractive index measuring
Document status: Active
Methods for the petrographic analysis of bituminous coal and anthracite. Part 3. Method of determining maceral group composition
Document status: Withdrawn
Cosmetics. Method for determination of water and volatiles or dry substance
Document status: Active
Copper and complex ores, and products of their processing. Method for measurement of iron weight fraction
Document status: Active
