DZ/T 0064.18-1993
Groundwater quality testing method Determination of total chromium and hexavalent chromium by catalytic polarography (English Version)
- Standard No.
- DZ/T 0064.18-1993
- Language
- Chinese, Available in English version
- Release Date
- 1993
- Published By
- Professional Standard - Geology
- Status
- Replace By
- DZ/T 0064.18-2021
- Latest
- DZ/T 0064.18-2021
- Scope
- This standard specifies the method for the determination of total chromium and hexavalent chromium by catalytic polarography. This standard is applicable to the determination of total chromium and hexavalent chromium in groundwater. The minimum detection volume of this method is 0.004ug, and the optimal measurement range is 0.4ug/L~20ug/L. When the iron content is greater than 0.12mg/L, serious negative interference will occur, and a small amount of CyDTA can be added to mask the ferric iron.
DZ/T 0064.18-1993 history
- 1970 DZ/T 0064.18-2021 Analytical methods of groundwater quality - Part 18: Determination of total chromium and hexavalent chromium by catalytic polarography
- 1993 DZ/T 0064.18-1993 Groundwater quality testing method Determination of total chromium and hexavalent chromium by catalytic polarography
