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Preview GB/T 6150.13-2008 17.6.2008
GB/T 6150.13-2008 WITHDRAWN

Methods for chemical analysis of tungsten concentrates—Determination of arsenic content—Hydride reduction atomic absorption spectrometry and the silver diethyldithiocarbamate(DDTC-Ag) photometry

WITHDRAWN published on 17.6.2008

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Preview GB/T 6150.14-1985 21.6.1985
GB/T 6150.14-1985 WITHDRAWN

Methods for chemical analysis of tungsten concentrates—The molybdenum blue photometric method for the determination of silicon dioxide content

WITHDRAWN published on 21.6.1985

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Preview GB/T 6150.15-1985 21.6.1985
GB/T 6150.15-1985 WITHDRAWN

Methods for chemical analysis of tungsten concentrates—The silver diethyldithiocarbamate photometric method for the determination of arsenic content

WITHDRAWN published on 21.6.1985

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Preview GB/T 6150.15-2008 31.3.2008
GB/T 6150.15-2008 WITHDRAWN

Methods for chemical analysis of tungsten concentrates—Determination of bismuth content—Flame atomic absorption spectrometric method

WITHDRAWN published on 31.3.2008

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Preview GB/T 6150.16-1985 21.6.1985
GB/T 6150.16-1985 WITHDRAWN

Methods for chemical analysis of tungsten concentrates—The atomic absorption spectrophotometric method for the determination of manganese content

WITHDRAWN published on 21.6.1985

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Preview GB/T 6150.17-1985 21.6.1985
GB/T 6150.17-1985 WITHDRAWN

Methods for chemical analysis of tungsten concentrates—The semi-xylenol orange photometric method for the determination of bismuth content

WITHDRAWN published on 21.6.1985

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Preview GB/T 6150.17-2008 17.6.2008
GB/T 6150.17-2008 WITHDRAWN

Methods for chemical analysis of tungsten concentrates—Determination of antimony content—Hydride reduction atomic absorption spectrometry

WITHDRAWN published on 17.6.2008

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Preview GB/T 6150.18-1985 21.6.1985
GB/T 6150.18-1985 WITHDRAWN

Methods for chemical analysis of tungsten concentrates—The sulphosalicylic acid photometric method for the determination of iron content

WITHDRAWN published on 21.6.1985

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Preview GB/T 6150.19-1985 21.6.1985
GB/T 6150.19-1985 WITHDRAWN

Methods for chemical analysis of tungsten concentrates—The 2-(5-bromo pyridylazo)-5-diethylaminophenol photometric method for the determination of antimony content

WITHDRAWN published on 21.6.1985

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Preview GB/T 6150.2-1985 21.6.1985
GB/T 6150.2-1985 WITHDRAWN

Methods for chemical analysis of tungsten concentrates—The potassium iodate volumetric method for the determination of tin content

WITHDRAWN published on 21.6.1985

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