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Methods for chemical analysis of tungsten concentrates—The barium sulfate gravimetric method for the determination of sulfur content
WITHDRAWN published on 21.6.1985
Selected format:Methods for chemical analysis of tungsten concentrates—The EDTA volumetric method for the determination of calcium content
WITHDRAWN published on 21.6.1985
Selected format:Methods for chemical analysis of tungsten concentrates—Determination hygroscopic moisture content—Gravimetric method
WITHDRAWN published on 31.3.2008
Selected format:Methods for chemical analysis of tungsten concentrates—The atomic absorption spectrophotometric method for the determination of calcium content
WITHDRAWN published on 21.6.1985
Selected format:Methods for chemical analysis of tungsten concentrates—The gravimetric method for the determination hygroscopic moisture content
WITHDRAWN published on 21.6.1985
Selected format:Methods for chemical analysis of tungsten concentrates—Determination of molybdenum content—The thiocyanate spectrophotometry
WITHDRAWN published on 30.10.2009
Selected format:Methods for chemical analysis of tungsten concentrates—The chlorosulphophenol S photometric method for the determination niobium content; The butylrhodamine B extraction photometric method for the determination tantalum content
WITHDRAWN published on 21.6.1985
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WITHDRAWN published on 1.1.1985
Selected format:Textiles—Tests for colour fastness—General principle of testing
WITHDRAWN published on 9.6.1997
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WITHDRAWN published on 1.1.1985
Selected format:Latest update: 2026-07-06 (Number of items: 2 286 164)
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