HG/T 2023-1991
Determination of free chlorine and total chlorine in industrial circulating cooling water N,N-Diethyl-1,4-Phenylenediamine spectrophotometric method (English Version)
- Standard No.
- HG/T 2023-1991
- Language
- Chinese, Available in English version
- Release Date
- 1991
- Published By
- Professional Standard - Chemical Industry
- Status
- 2010-02
- Latest
- HG/T 2023-1991
HG/T 2023-1991 history
- 1991 HG/T 2023-1991 Determination of free chlorine and total chlorine in industrial circulating cooling water N,N-Diethyl-1,4-Phenylenediamine spectrophotometric method
