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Brown coals, hard coals, anthracites, solid dispersed organic matters and carbon materials. Method for determination of reflectance indices
Document status: Withdrawn
Surface active agents. Technical sodium secondary alkylsulphates. Methods of analysis
Document status: Active
Chrysotile asbestos. Method for determination of fractional composition and foreign matters content on the testing machine
Document status: Active
Tungsten concentrate. Method of determination of antimony
Document status: Active