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GB/T 223.60-1997 Methods for chemical analysis of iron，steel and alloy--The perchloric acid dehydration gravimetric method for the determination of silicon content - 英文版 |
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GB/T 16484.17-1996 Methods for chemical analysis of rare earth chloride and carbonate--Determination of water content in rare earth carbonate - 英文版 |
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GB/T 16480.3-1996 Methods for chemical analysis of yttrium and yttrium oxide--Determination of fluorine content - 英文版 |
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GB/T 4734-1996 Methods of chemical analysis for ceramic materials and articles - 英文版 |
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GB/T 16399-1996 Method for chemical analysis of clay - 英文版 |
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GB/T 223.6-1994 Methods for chemical analysis of iron，steel and alloy--The neutralization titrimetric method for the determination of boron content - 英文版 |
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GB/T 223.50-1994 Methods for chemical analysis of iron，steel and alloy--The phenylfluorone-CTMAB direct photometric method for the determination of tin content - 英文版 |
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GB/T 223.49-1994 Methods for chemical analysis of iron，steel and alloy--Extraction separation-chlorophosphonazo mA spectro-photometric method for the determination of the total rare earth content - 英文版 |
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GB/T 223.47-1994 Methods for chemical analysis of iron，steel and alloy--The carrier precipitation-molybdenumblue potometric method for the determination of antimony content - 英文版 |
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GB/T 223.36-1994 Methods for chemical analysis of iron，steel and alloy--The neutral titration method for the determination of nitrogen content after distillation separation - 英文版 |
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GB/T 223.33-1994 Methods forchemical analysis of iron，steel and alloy--The chlorophosphonago mA photometric method for the determination of cerium content after extraction separation - 英文版 |
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GB/T 223.32-1994 Methods for chemical analysis of iron，steel and alloy--The hypophosphite reduction-iodimetric method for the determination of arsenic content - 英文版 |
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GB/T 223.30-1994 Methods for chemical analysis of iron，steel and alloy--The arsenazo Ⅲspectrophotometric method for the determination of zirconium content after separation by p-bromomandelic acid - 英文版 |
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GB/T 15076.7-1994 Methods for chemical analysis of tantalum and niob-ium--Determination of phosphorus content in niob-ium - 英文版 |
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GB/T 15076.6-1994 Methods for chemical analysis of tantalum and niob-ium--Determination of silicon content in tantalum - 英文版 |
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GB/T 15076.5-1994 Methods for chemical analysis of tantalum and niob-ium--Determination of molybdenum and tungsten contents - 英文版 |
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GB/T 15076.4-1994 Methods for chemical analysis of tantalumand niob-ium--Determination of iron content - 英文版 |
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GB/T 15076.3-1994 Methods for chemical analysis of tantalumand niob-ium--Determination of copper content - 英文版 |
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GB/T 15076.2-1994 Methods for chemical analysis of tantalum and niob-ium--Determination of niobium content in tantalum - 英文版 |
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GB/T 15076.13-1994 Methods for chemical analysis of tantalum and niob-ium--Determination of nitrogen content in tantalum - 英文版 |
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GB/T 15076.1-1994 Methods for chemical analysis of tantalum and niob-ium--Determination of tantalum content in niobium - 英文版 |
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GB/T 15076.11-1994 Methods for chemical analysis of tantalum and niob-ium--Determination of arsenic antimony，lead，tin and bismuth contents in niobium - 英文版 |
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GB/T 15076.10-1994 Methods for chemical analysis of tantalum and niob-ium--Determination of iron，nickel，chromium，titan-ium，zirconium， aluminium and manganese contents in niobium - 英文版 |
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GB/T 223.77-1994 Methods for chemical analysis of iron，steel and alloy--The flame atomic absorption spectrometric method for the determination of calcium content - 英文版 |
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GB/T 223.76-1994 Methods for chemical analysis of iron，steel and alloy--The flame atomic absorption spectrometric method for the determination of vanadium content - 英文版 |
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GB/T 223.25-1994 Methods for chemical analysis of iron，steel and alloy--The dimethylglyoxime gravimetric method forthe determination of nickel content - 英文版 |
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GB/T 223.22-1994 Methods for chemical analysis of iron，steel and alloy--The nitroso-R-salt spectrophotometric method for the determination of cobalt content - 英文版 |
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GB/T 223.21-1994 Methods for chemical analysis of iron，steel and alloy--The 5-Cl-PADAB spectrophotometricmethod for the determination of cobalt content - 英文版 |
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GB/T 223.20-1994 Methods for chemical analysis of iron，steel and alloy--The fotentiometric titration method for the determination of cobalt content - 英文版 |
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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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