GB/T 13689-1992
Industrial circuating cooling water--Determination of copper--Sodium diethyldithiocabamate spectrophotometric method (English Version)
- Standard No.
- GB/T 13689-1992
- Language
- Chinese, Available in English version
- Release Date
- 1992
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Status
- 2008-02
- Replace By
- GB/T 13689-2007
- Latest
- GB/T 13689-2007
- Scope
- This standard specifies the determination method of copper in industrial circulating cooling water. This standard applies to the determination of copper content of 0.02-2.00mg/L in industrial circulating cooling water, and also applies to the determination of copper in various industrial and domestic water. Iron, manganese, nickel and cobalt also form colored complexes with sodium diethyldithiocarbamate, which interferes with the determination of copper. This method uses ethylenediaminetetraacetic acid disodium salt and ammonium citrate to mask and eliminate.
GB/T 13689-1992 history
- 2007 GB/T 13689-2007 Water for industrial circulating cooling system and boiler.Determination of copper
- 1992 GB/T 13689-1992 Industrial circuating cooling water--Determination of copper--Sodium diethyldithiocabamate spectrophotometric method
