HG/T 2157-1991
Determination of ammonium in industrial circulating cooling water Potential method (English Version)
- Standard No.
- HG/T 2157-1991
- Language
- Chinese, Available in English version
- Release Date
- 1991
- Published By
- Professional Standard - Chemical Industry
- Status
- 2012-07
- Replace By
- HG/T 2157-2011
- Latest
- HG/T 2157-2011
- Scope
- This standard specifies the determination of ammonium content in industrial circulating cooling water by potentiometric method. This standard is applicable to the determination of ammonium (in N) in industrial circulating cooling water with a content of 0 to 50 mg/L. This standard is not applicable to industrial circulating cooling water samples with a urea content exceeding 100 mg/L, because urea has a positive effect on this method. interference.
HG/T 2157-1991 history
- 2012 HG/T 2157-2011 Potentiometric Determination of Ammonium in Industrial Circulating Cooling Water
- 1991 HG/T 2157-1991 Determination of ammonium in industrial circulating cooling water Potential method
