Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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GB/T 11893-1989 Water quality-Determination of total phosphorus-Ammonium molybdate spectrophotometric method 30.0 via email in 1 business day valid
CJ/T 150-2001 Urban water supply—Determination of mutagenesis—Salmonella typhimurium/Mammals microsomal enzyme test 135.0 via email in 1~3 business day valid
GB/T 17132-1997 Environment-Determination of methylmercury-Gas chromatography 120.0 via email in 1~3 business day valid
GB 11899-1989 Water quality-Determination of sulfate-Gravimatric method 60.0 via email in 1~3 business day valid
GB 11893-1989 Water quality-Determination of total phosphorus-Ammonium molybdate spectrophotometric method 60.0 via email in 1~3 business day valid
GB 11914-1989 Water quality-Determination of the chemical oxygen demand-Dichromate method 60.0 via email in 1~3 business day superseded
SL 327.1-2005 Water quality - determination of arsenic - atomic fluorescence spectrometric method 90.0 via email in 1~3 business day valid
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 abolished
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 abolished
GB 7485-1987 Water quality; Determination of total arsenic; Silver diethyldithiocarbamate spectrophotometric method 60.0 via email in 1~3 business day valid
SL/T 272-2001 Water quality - determination of total selenium - iron (II) - O - phenanthroline indirect spectrophotometry 105.0 via email in 1~3 business day valid
GB/T 21925-2008 Determination of herbicide residues in water - LC/MS method 120.0 via email in 1~3 business day valid
HJ/T 83-2001 Water quality -- Determination of adsorbable organic halogen -- Ion chromatography method 165.0 via email in 1~3 business day valid
HJ/T 58-2000 Water quality -- Determination of beryllium -- Spectrophotometric method with erichrome cyanine R 90.0 via email in 1~3 business day valid
GB 7466-1987 Water quality; Determination of total chromium 50.0 via email in 1 business day valid
MT/T 622-1996 Simple Determination Method of Five-day Biochemical Oxygen Demand (BOD5) 90.0 via email in 1~3 business day valid
GB 7491-1987 Water quality; Determination of volatile phenolic; Compounds; After distillation with bromine method 30.0 via email in 1~3 business day abolished
GB 7481-1987 Water quality; Determination of ammonium; Spectrophotometric method with salicylic acid 75.0 via email in 1~3 business day abolished
GB/T 7484-1987 quality - Determination of fluoride - Ion selective electrode method 45.0 via email in 1~3 business day valid
GB 11890-1989 Water quality - Determination of benzene and its analogies gas chromatographic method 120.0 via email in 1~3 business day valid
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