2024-11-24 18.118.126.44
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Position: Search valid to be valid superseded to be superseded abolished to be abolished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
HG 2022-1991 Determination of free chlorine and total chlorine in industrial circulating cooling water N, N-Diethyl-1, 4-Phenylenediamine titration 60.0 via email in 1~3 business day abolished2010-01-20 ,,1992-1-1
HG/T 2023-1991 Determination of free chlorine and total chlorine in industrial circulating cooling water N, N-Diethyl-1, 4-Phenylenediamine spectrophotometric method 180.0 via email in 1~3 business day abolished2010-01-20 ,,1992-1-1
HG/T 2156-1991 Determination of anionic surface active agent in industrial circulating cooling water Methylene blue spectrophotometric method 184.0 via email in 1~3 business day abolished2010-06-01 ,2010-6-1,1992-1-1
SL 495-2010 Determination of chlorinated herbicides in water by gas chromatography 120.0 via email in 1~3 business day valid,,2010-12-17
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HG 2022-1991 Determination of free chlorine and total chlorine in industrial circulating cooling water N, N-Diethyl-1, 4-Phenylenediamine titration 
  Issued on: 1991-06-27   Price(USD): 60.0
HG/T 2023-1991 Determination of free chlorine and total chlorine in industrial circulating cooling water N, N-Diethyl-1, 4-Phenylenediamine spectrophotometric method 
  Issued on: 1991-06-27   Price(USD): 180.0
HG/T 2156-1991 Determination of anionic surface active agent in industrial circulating cooling water Methylene blue spectrophotometric method 
  Issued on:   Price(USD): 184.0
SL 495-2010 Determination of chlorinated herbicides in water by gas chromatography 
  Issued on: 2010-09-17   Price(USD): 120.0
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