2025-12-8 216.73.216.21
Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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GB 6730.26-1986 Methods for chemical analysis of iron ores; The thorium nitrate volumetric method for the determination of fluorine content 60.0 via email in 1~3 business day superseded2018-06-01,2018-6-1,1987-8-1
GB 6730.12-1986 Methods for chemical analysis of iron ores; The chrome azurol S photometric method for the determination of aluminum content 75.0 via email in 1~3 business day abolished2017-09-01,2017-9-1,1987-8-1
GB/T 6730.41-1986 Methods for chemical analysis of iron ores--The oscilloscopic polarography method for the determination of lead content 180.0 via email in 1~3 business day abolished2005-10-14 ,,1987-8-1
GB 6730.8-1986 Methods for chemical analysis of iron ores; The potassium dichromate volumetric method for the determination of iron(2) content 60.0 via email in 1~3 business day superseded,2017-9-1,1987-8-1
GB 6730.1-1986 Methods for chemical analysis of iron ores; Preparation of predried test samples for chemical analysis 30.0 via email in 1~3 business day abolished2016-11-01,2016-11-1,1987-8-1
GB 6730.14-1986 Methods for chemical analysis of iron ores; The flame atomic absorption spectrophotometric method for the determination of calcium and magnesium content 90.0 via email in 1~3 business day superseded,2018-6-1,1987-8-1
GB 6730.29-1986 Methods for chemical analysis of iron ores - The barium sulfate gravimetric method for the determination of barium content 60.0 via email in 1~3 business day superseded2017-09-01,2017-9-1,1987-8-1
GB 6730.50-1986 Methods for chemical analysis of iron ores - The gas volumetric method for the determination of total carbon content 75.0 via email in 1~3 business day superseded2017-09-01 ,2017-9-1,1987-8-1
GB/T 6730.48-1986 Methods for chemical analysis of iron ores; The dethio diantipyryl methane photometric method for the determination of bismuth content 115.0 via email in 1~3 business day superseded,2022-7-1,1987-8-1
GB 6730.7-1986 Methods for chemical analysis of iron ores - The sulfosalicylic acid photometric method for the determination of metallic iron content 60.0 via email in 1~3 business day superseded,2017-9-1,1987-8-1
GB/T 6730.13-1986 Methods for chemical analysis of iron ores--The potassium permanganate volumetric method for the determination of calcium content 220.0 via email in 1~3 business day superseded,2008-3-1,1987-8-1
GB 6730.3-1986 Methods for chemical analysis of iron ores - The gravimetric method for the determination of hygroscopic moisture content in analytical samples 60.0 via email in 1~3 business day superseded2018-07-01 ,2018-7-1,1987-8-1
GB 6730.31-1986 Methods for chemical analysis of iron ores; The benzoylphenylhydroxylamine extraction photometric method for the determination of vanadium content 60.0 via email in 1~3 business day superseded,2018-6-1,1987-8-1
GB 6730.39-1986 Methods for chemical analysis of iron ores; The dimethylglyoxime photometric method for the determination of nickel content 45.0 via email in 1~3 business day superseded,2018-6-1,1987-8-1
GB 6730.30-1986 Methods for chemical analysis of iron ores; The diphenyl carbazide photometric method for the determination of chromium content 75.0 via email in 1~3 business day superseded2018-06-01,2018-6-1,1987-8-1
GB 6730.16-1986 Methods for chemical analysis of iron ores - The barium sulfate gravimetric method for the determination of sulfur content 60.0 via email in 1~3 business day superseded2017-09-01,2017-9-1,1987-8-1
GB 6730.36-1986 Methods for chemical analysis of iron ores - The flame atomic absorption spectrophotometric method for the determination of copper content 60.0 via email in 1~3 business day superseded2016-11-01 ,2016-11-1,1987-8-1
GB/T 6730.24-1986 Methods for chemical analysis of iron ores; The arsenazo 3 photometric method for the determination of rare earth elements content 60.0 via email in 1~3 business day superseded,2007-2-1,1987-8-1
GB/T 6730.9-1986 Methods for chemical analysis of iron ores; The silicomolybdic blue photometric method for the determination of silicon content 264.0 via email in 1~3 business day superseded,2007-2-1,1987-8-1
GB 6730.19-1986 Methods for chemical analysis of iron ores - The bismuth phosphomolybdate blue photometric method for the determination of phosphorus content 60.0 via email in 1~3 business day abolished2017-09-01,2017-9-1,1987-8-1
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GB 6730.26-1986 Methods for chemical analysis of iron ores; The thorium nitrate volumetric method for the determination of fluorine content 
  Issued on: 1986-08-19   Price(USD): 60.0
GB 6730.12-1986 Methods for chemical analysis of iron ores; The chrome azurol S photometric method for the determination of aluminum content 
  Issued on: 1986-08-19   Price(USD): 75.0
GB/T 6730.41-1986 Methods for chemical analysis of iron ores--The oscilloscopic polarography method for the determination of lead content 
  Issued on: 1986-08-19   Price(USD): 180.0
GB 6730.8-1986 Methods for chemical analysis of iron ores; The potassium dichromate volumetric method for the determination of iron(2) content 
  Issued on: 1986-08-19   Price(USD): 60.0
GB 6730.1-1986 Methods for chemical analysis of iron ores; Preparation of predried test samples for chemical analysis 
  Issued on: 1986-08-19   Price(USD): 30.0
GB 6730.14-1986 Methods for chemical analysis of iron ores; The flame atomic absorption spectrophotometric method for the determination of calcium and magnesium content 
  Issued on: 1986-08-19   Price(USD): 90.0
GB 6730.29-1986 Methods for chemical analysis of iron ores - The barium sulfate gravimetric method for the determination of barium content  
  Issued on: 1986-8-19   Price(USD): 60.0
GB 6730.50-1986 Methods for chemical analysis of iron ores - The gas volumetric method for the determination of total carbon content  
  Issued on: 1986-8-19   Price(USD): 75.0
GB/T 6730.48-1986 Methods for chemical analysis of iron ores; The dethio diantipyryl methane photometric method for the determination of bismuth content 
  Issued on: 1986-08-19   Price(USD): 115.0
GB 6730.7-1986 Methods for chemical analysis of iron ores - The sulfosalicylic acid photometric method for the determination of metallic iron content  
  Issued on: 1986-8-19   Price(USD): 60.0
GB/T 6730.13-1986 Methods for chemical analysis of iron ores--The potassium permanganate volumetric method for the determination of calcium content 
  Issued on: 1986-08-19   Price(USD): 220.0
GB 6730.3-1986 Methods for chemical analysis of iron ores - The gravimetric method for the determination of hygroscopic moisture content in analytical samples  
  Issued on: 1986-8-19   Price(USD): 60.0
GB 6730.31-1986 Methods for chemical analysis of iron ores; The benzoylphenylhydroxylamine extraction photometric method for the determination of vanadium content 
  Issued on: 1986-08-19   Price(USD): 60.0
GB 6730.39-1986 Methods for chemical analysis of iron ores; The dimethylglyoxime photometric method for the determination of nickel content 
  Issued on: 1986-08-19   Price(USD): 45.0
GB 6730.30-1986 Methods for chemical analysis of iron ores; The diphenyl carbazide photometric method for the determination of chromium content 
  Issued on: 1986-08-19   Price(USD): 75.0
GB 6730.16-1986 Methods for chemical analysis of iron ores - The barium sulfate gravimetric method for the determination of sulfur content  
  Issued on: 1986-8-19   Price(USD): 60.0
GB 6730.36-1986 Methods for chemical analysis of iron ores - The flame atomic absorption spectrophotometric method for the determination of copper content  
  Issued on: 1986-8-19   Price(USD): 60.0
GB/T 6730.24-1986 Methods for chemical analysis of iron ores; The arsenazo 3 photometric method for the determination of rare earth elements content 
  Issued on: 1986-08-19   Price(USD): 60.0
GB/T 6730.9-1986 Methods for chemical analysis of iron ores; The silicomolybdic blue photometric method for the determination of silicon content 
  Issued on: 1986-08-19   Price(USD): 264.0
GB 6730.19-1986 Methods for chemical analysis of iron ores - The bismuth phosphomolybdate blue photometric method for the determination of phosphorus content  
  Issued on: 1986-8-19   Price(USD): 60.0
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