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GB/T 223.18-1994 Methods for chemical analysis of iron，steel and alloy--The sodium thiosulfate separation iodimetric method for the determination of copper content - 英文版 |
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GB/T 223.16-1991 Methods for chemical analysis of iron，steel and alloy--The chromotropic acid photometric method for the determination of titanium content - 英文版 |
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GB/T 223.12-1991 Methodsfor chemical analysis of iron，steel and alloy--The sodium carbonate separation-diphenyl carbazide photometric method for the determination of chromium content - 英文版 |
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GB/T 4333.10-1990 Methods for chemical analysis of ferrosilicon--The infrared absorption method for the determination of carbon content - 英文版 |
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GB/T 223.66-1989 Methods for chemical analysis of iron，steel and alloy--The thiocyanate chlorpromazine hydrochloride--chloro form extraction photometric method for the determination of tungsten content - 英文版 |
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GB/T 223.46-1989 Methods for chemical analysis of iron，steel and alloy--The flame atomic absorption spectrometric method for the determination of magnesium content - 英文版 |
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GB/T 223.37-1989 Methods for chemical analysis of iron，steel and alloy--The indophenol blue photometric method for the determination of nitrogen content after distillation separation - 英文版 |
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GB/T 223.28-1989 Methods for chemical analysis of iron，steel and alloy--The α-benzoinoxime gravimetric method for the determination of molybdenum content - 英文版 |
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GB/T 223.19-1989 Methods for chemical analysis of iron，steel and alloy--The neocuproine-chloroform extraction photometric method for the determination of copper content - 英文版 |
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GB/T 223.17-1989 Methods for chemical analysis of iron，steel and alloy--The diantipyryl methane photometric method for the determination of titanium content - 英文版 |
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GB/T 3653.1-1988 Methods for chemical analysis of ferroboron--The alkalimetric method for the determination of boron content - 英文版 |
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GB/T 4333.8-1988 Methods for chemical analysisof ferrosilicon--The atomic absorption spectrometric method for the deter-mination of calcium content - 英文版 |
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GB/T 4333.6-1988 Methods for chemical analysis of ferrosilicon--The diphenylcarbazide photometric method for the determination of chromium content - 英文版 |
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GB/T 4333.3-1988 Methods for chemical analysisof ferrosilicon--The potassium periodate photometric method for the determination of manganese content - 英文版 |
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GB/T 4333.2-1988 Methods for chemical analysisof ferrosilicon--The reduced molybdobismuthylphosphoric acid photometric method for the determination of phosphorus content - 英文版 |
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GB/T 3653.6-1988 Methods for chemical analysisof ferroboron--The reduced molybdoantimonylphosphoric acid photometric method for the determination of phosphorus content - 英文版 |
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GB/T 3653.3-1988 Methods for chemical analysis of ferroboron--The perchloric acid dehydration-gravimetric method for the determination of silicon content - 英文版 |
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GB/T 7731.10-1988 Methods for chemical analysis of ferrotungsten--The infrared absorption method for the determination of carbon content - 英文版 |
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GB/T 4702.14-1988 Methods for chemical analysisof chromium metal--The infrared absorption method for the determination of carbon content - 英文版 |
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GB/T 8654.6-1988 Methods for chemical analysis of manganese metal--The diamine hydrochloride-iodo-metric method for the determination of selenium content - 英文版 |
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GB/T 223.3-1988 Methods forchemical analysis of iron，steel and alloy--The diantipyryl methane phosphomolybdate gravimetric method for the determination of phosphorus content - 英文版 |
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GB/T 8156.9-1987 Methods for chemical analysis of aluminium fluoride for industrial use--The molybdenum blue photometric method for the determination of phosphorus content - 英文版 |
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GB/T 8156.8-1987 Methods for chemical analysis of aluminium fluoride for industrial use--The barium sulphate gravimetric method for the determination of sulphate content - 英文版 |
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GB/T 8156.7-1987 Methods for chemical analysis of aluminium fluoride for industrial use--The 1，10-phenanthroline photometric method for the determination of iron content - 英文版 |
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GB/T 8156.6-1987 Methods for chemical analysis of aluminium fluoride for industrial use--The molybdenum blue photometric method for the determination of silica content - 英文版 |
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GB/T 8156.5-1987 Methods for chemical analysis of aluminium fluoride for industrial use--The flame emission photometric method for the determination of sodium content - 英文版 |
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GB/T 8156.4-1987 Methods for chemical analysis of aluminium fluoride for industrial use--The EDTA volumetric method for the determination of aluminium content - 英文版 |
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GB/T 8156.3-1987 Methods for chemical analysis of aluminium fluoride for industrial use--The distillation-thoriumnitrate volumetric method for the determination of fluoride content - 英文版 |
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GB/T 8156.2-1987 Methods for chemical analysis of aluminium fluoride for industrial use--The electrometric method for the determination of water content - 英文版 |
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GB/T 8156.1-1987 Methods for chemical analysis of aluminium fluoride for industrial use--The gravimetric method for the determination of moisture content - 英文版 |
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