2025-12-13 216.73.216.3
Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
Position: Search valid to be valid superseded to be superseded abolished to be abolished
Standard No. Title Price(USD) Delivery Status Add to Cart
GB 11894-1989 Water quility-Determination of total nitrogen UV spectrophotometric method-Alkaline potassium persulfate digestion method 45.0 via email in 1~3 business day superseded2012-06-01,2012-6-1,1990-7-1
GB 11898-1989 Water quality-Determinatoin of free chlorine and total chlorine-Spectrophotometric method useing N,N-diethyl-1,4 phenylenediamine 75.0 via email in 1~3 business day superseded2010-12-01 ,2010-12-1,1990-7-1
GB/T 11893-1989 Water quality-Determination of total phosphorus-Ammonium molybdate spectrophotometric method 30.0 via email in 1 business day valid,,1990-7-1
GB 11896-1989 Water quality - Determination of chloride-Silver nitrate titration method 40.0 via email in 1 business day valid,,1990-7-1
GB 9803-1988 quality - Determination of pentachlorophenol by safranine - T spectrophotometric method 45.0 via email in 1~3 business day valid,,1988-12-1
CJ/T 70-1999 Municipal sewage. Determination of total chromium. 1. 5 diphenylcarbohydrazide spectrophotometric method 180.0 via email in 1~3 business day valid,,1988-9-23
CJ/T 71-1999 Municipal sewage. Determination of total chromium (VI). 1. 5 diphenylcarbohydrazide spectrophotometric method 180.0 via email in 1~3 business day valid,,1988-9-23
GB 8972-1988 Water quality-Determination of pentachlorophenol-Gas chromatography 45.0 via email in 1~3 business day superseded2011-01-01 ,2011-1-1,1988-8-1
GB 7492-1987 Water quality; Determination of BHC and DDT; Gas chromatography 105.0 via email in 1~3 business day valid,,1987-8-1
GB 7472-1987 Water quality - Determination of zinc - Spectrophotometric method with dithizone 60.0 via email in 1 business day valid,,1987-8-1
GB 7469-1987 Water quality-Determination of total mercury-potassium permanganats-potassium persalfate decomposed method-Dithizonc spectrophotometric method 60.0 via email in 1 business day valid,,1987-8-1
GB/T 7493-1987 quality - Determination of nitrogen (nitrite) - Spectrophotometric method 45.0 via email in 1~3 business day valid,,1987-8-1
GB/T 7484-1987 quality - Determination of fluoride - Ion selective electrode method 45.0 via email in 1~3 business day valid,,1987-8-1
GB 7486-1987 Water quality; Determination of cyanide; Part 1:Determination of total cyanide 120.0 via email in 1~3 business day superseded,2009-11-1,1987-8-1
GB/T 7482-1987 Water quality--Determination of fluoride--Visual colorimetry with zirconium alizarinsulfonate 180.0 via email in 1~3 business day abolished2009-11-01,,1987-8-1
GB 7489-1987 Water quality; Determination of dissolved oxygen; Iodometric method 90.0 via email in 1~3 business day valid,,1987-8-1
GB 7479-1987 Water quality - Determination of ammonium-Nessler 60.0 via email in 1~3 business day superseded,2010-4-1,1987-8-1
GB/T 7485-1987 Water quality - Determination of total arsenic - Silver diethyldithiocarbamate spectrophotometric method 110.0 via email in 1 business day valid,,1987-8-1
GB/T 7475-1987 quality - Determination of copper, zinc, lead and cadmium - Atomic absorption spectrometry 100.0 via email in 1~3 business day valid,,1987-8-1
GB/T 7477-1987 quality - Determination of the sum of calcium and magnesium - EDTA titrimetric method 115.0 via email in 1~3 business day valid,,1987-8-1
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GB 11894-1989 Water quility-Determination of total nitrogen UV spectrophotometric method-Alkaline potassium persulfate digestion method 
  Issued on: 1989-12-25   Price(USD): 45.0
GB 11898-1989 Water quality-Determinatoin of free chlorine and total chlorine-Spectrophotometric method useing N,N-diethyl-1,4 phenylenediamine 
  Issued on: 1989-12-25   Price(USD): 75.0
GB/T 11893-1989 Water quality-Determination of total phosphorus-Ammonium molybdate spectrophotometric method 
  Issued on: 1989-12-25   Price(USD): 30.0
GB 11896-1989 Water quality - Determination of chloride-Silver nitrate titration method 
  Issued on: 1989-12-25   Price(USD): 40.0
GB 9803-1988 quality - Determination of pentachlorophenol by safranine - T spectrophotometric method 
  Issued on: 1988-8-15   Price(USD): 45.0
CJ/T 70-1999 Municipal sewage. Determination of total chromium. 1. 5 diphenylcarbohydrazide spectrophotometric method 
  Issued on:   Price(USD): 180.0
CJ/T 71-1999 Municipal sewage. Determination of total chromium (VI). 1. 5 diphenylcarbohydrazide spectrophotometric method 
  Issued on:   Price(USD): 180.0
GB 8972-1988 Water quality-Determination of pentachlorophenol-Gas chromatography 
  Issued on: 1988-03-26   Price(USD): 45.0
GB 7492-1987 Water quality; Determination of BHC and DDT; Gas chromatography 
  Issued on: 1987-03-06   Price(USD): 105.0
GB 7472-1987 Water quality - Determination of zinc - Spectrophotometric method with dithizone 
  Issued on: 1987-3-6   Price(USD): 60.0
GB 7469-1987 Water quality-Determination of total mercury-potassium permanganats-potassium persalfate decomposed method-Dithizonc spectrophotometric method 
  Issued on: 1987-3-14   Price(USD): 60.0
GB/T 7493-1987 quality - Determination of nitrogen (nitrite) - Spectrophotometric method 
  Issued on: 1987-3-6   Price(USD): 45.0
GB/T 7484-1987 quality - Determination of fluoride - Ion selective electrode method 
  Issued on: 1987-3-6   Price(USD): 45.0
GB 7486-1987 Water quality; Determination of cyanide; Part 1:Determination of total cyanide 
  Issued on: 1987-03-06   Price(USD): 120.0
GB/T 7482-1987 Water quality--Determination of fluoride--Visual colorimetry with zirconium alizarinsulfonate 
  Issued on: 1987-03-06   Price(USD): 180.0
GB 7489-1987 Water quality; Determination of dissolved oxygen; Iodometric method 
  Issued on: 1987-03-06   Price(USD): 90.0
GB 7479-1987 Water quality - Determination of ammonium-Nessler 
  Issued on: 1987-03-06   Price(USD): 60.0
GB/T 7485-1987 Water quality - Determination of total arsenic - Silver diethyldithiocarbamate spectrophotometric method 
  Issued on: 1987-3-6   Price(USD): 110.0
GB/T 7475-1987 quality - Determination of copper, zinc, lead and cadmium - Atomic absorption spectrometry 
  Issued on: 1987-3-6   Price(USD): 100.0
GB/T 7477-1987 quality - Determination of the sum of calcium and magnesium - EDTA titrimetric method 
  Issued on: 1987-3-6   Price(USD): 115.0
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