Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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GB 2825-1981 Technical requirements for tungsten concentrate $184.00 via email in 1~3 business day superseded
GB/T 13070-1991 Determination of uranium content in uranium ores by method of potentiometric titration $120.00 via email in 1~3 business day valid
GB/T 17672-1999 Determinations for isotopes of lead, strontium and neodymium in rock samples $100.00 via email in 1~3 business day valid
GB/T 6150.1-1985 Methods for chemical analysis of tungsten concentrates; The ammonium tungstate igniting gravimetric method for the determination of tungsten trioxide content $184.00 via email in 1~3 business day abolished
GB/T 6150.10-1985 Methods for chemical analysis of tungsten concentrates--The thiocyanate photometric method for the determination of molybdenum content $180.00 via email in 1~3 business day superseded
GB/T 6150.11-1985 Methods for chemical analysis of tungsten concentrates--The atomic absorption spectrophotometric method for the determination of copper content $180.00 via email in 1~3 business day abolished
GB/T 6150.12-1985 Methods for chemical analysis of tungsten concentrates; The hydrochloric acid-sodium chloride supporting electrolyte polarographic method for the determination of lead content $184.00 via email in 1~3 business day abolished
GB/T 6150.13-1985 Methods for chemical analysis of tungsten concentrates; The ammonium hydroxide-ammonium chloride supporting electrolyte polarographic method for the determination of zinc content $184.00 via email in 1~3 business day abolished
GB/T 6150.14-1985 Methods for chemical analysis of tungsten concentrates; The molybdenum blue photometric method for the determination of silicon dioxide content $184.00 via email in 1~3 business day abolished
GB/T 6150.15-1985 Methods for chemical analysis of tungsten concentrates; The silver diethyldithiocarbamate photometric method for the determination of arsenic content $184.00 via email in 1~3 business day abolished
GB/T 6150.16-1985 Methods for chemical analysis of tungsten concentrates; The atomic absorption spectrophotometric method for the determination of manganese content $184.00 via email in 1~3 business day abolished
GB/T 6150.17-1985 Methods for chemical analysis of tungsten concentrates; The semi-xylenol orange photometric method for the determination of bismuth content $184.00 via email in 1~3 business day abolished
GB/T 6150.18-1985 Methods for chemical analysis of tungsten concentrates--The sulphosalicylic acid photometric method for the determination of iron content $180.00 via email in 1~3 business day abolished
GB/T 6150.19-1985 Methods for chemical analysis of tungsten concentrates; The 2-(5-bromo-pyridylazo)-5-diethylaminophenol photometric method for the determination of antimony content $184.00 via email in 1~3 business day abolished
GB/T 6150.5-1985 Methods for chemical analysis of tungsten concentrates; The barium sulfate gravimetric method for the determination of sulfur content $184.00 via email in 1~3 business day abolished
GB/T 6150.6-1985 Methods for chemical analysis of tungsten concentrates--The EDTA volumetric method for the determination of calcium content $180.00 via email in 1~3 business day valid
GB/T 6150.7-1985 Methods for chemical analysis of tungsten concentrates--The atomic absorption spectrophotometric method for the determination of calcium content $184.00 via email in 1~3 business day superseded
GB/T 6150.8-1985 Methods for chemical analysis of tungsten concentrates; The gravimetric method for the determination hygroscopic moisture content $184.00 via email in 1~3 business day abolished
GB/T 6150.9-1985 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 determinati $184.00 via email in 1~3 business day superseded
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