Russian standards PDF
Organic dye-stuffs. Direct lightfast yellow O. Specifications
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Gallium. Atomic-emission method for the determination of aluminium, iron, bismuth, silicon, magnesium, manganese, copper, nickel, tin, lead, chromium and zinc
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Cylindrical small module gear. Pairs with watch profile. Types, basic parameters and dimensions, tolerances
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Seeds of trees and shrubs. Sowing characteristics. Specifications
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Optical materials. Methods for determination of chemical stability. Groups of chemical stability
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