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Preview GB/T 6730.37-1986 19.8.1986
GB/T 6730.37-1986 WITHDRAWN

Methods for chemical analysis of iron ores The 4-[(5-chloro-2-phridyl)azo]-1,3-diaminobenzene photometric method for the determination of cobalt content

WITHDRAWN published on 19.8.1986

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Preview GB/T 6730.38-1986 19.8.1986
GB/T 6730.38-1986 WITHDRAWN

Methods for chemical analysis of iron ores The nitroso-R salt photometric method for the determination of cobalt content

WITHDRAWN published on 19.8.1986

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Preview GB/T 6730.39-1986 19.8.1986
GB/T 6730.39-1986 WITHDRAWN

Methods for chemical analysis of iron ores—The dimetylglyoxime photometric method for the determination of nickel content

WITHDRAWN published on 19.8.1986

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Preview GB/T 6730.4-1986 19.8.1986
GB/T 6730.4-1986 WITHDRAWN

Methods for chemical analysis of iron ores The stannous chloride-mercuric chloride-potassium dichromate volumetric method for the determination of total iron content

WITHDRAWN published on 19.8.1986

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Preview GB/T 6730.40-1986 19.8.1986
GB/T 6730.40-1986 WITHDRAWN

Methods for the chemical analysis of iron ores The polarography method for the determination of nickel content

WITHDRAWN published on 19.8.1986

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Preview GB/T 6730.41-1986 19.8.1986
GB/T 6730.41-1986 WITHDRAWN

Methods for chemical analysis of iron ores The oscilloscopic polarography method for the determination of lead content

WITHDRAWN published on 19.8.1986

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Preview GB/T 6730.42-1986 19.8.1986
GB/T 6730.42-1986 WITHDRAWN

Methods for chemical analysis of iron ores The dithizone photometric method for the determination of lead content

WITHDRAWN published on 19.8.1986

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Preview GB/T 6730.43-1986 19.8.1986
GB/T 6730.43-1986 WITHDRAWN

Methods for the chemical analysis of iron ores The oscilloscopic polarography method for the determination of zinc content

WITHDRAWN published on 19.8.1986

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Preview GB/T 6730.44-1986 19.8.1986
GB/T 6730.44-1986 WITHDRAWN

Methods for chemical analysis of iron ores The 1-(2-pyridylazo)-2-naphthol photometric method for the determination of zinc content

WITHDRAWN published on 19.8.1986

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Preview GB/T 6730.45-1986 19.8.1986
GB/T 6730.45-1986 WITHDRAWN

Methods for chemical analysis of iron ores The diethyldithiocar bamic acid Ag salt photometric method for the determination of arsenic content

WITHDRAWN published on 19.8.1986

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