T/NAIA 0161-2022
Determination of chemical oxygen demand in high chlorine mine water in coal mines by silver salt precipitation-dichromate method (English Version)
- Standard No.
- T/NAIA 0161-2022
- Language
- Chinese, Available in English version
- Release Date
- 2022
- Published By
- Group Standards of the People's Republic of China
- Latest
- T/NAIA 0161-2022
- Scope
- This document specifies the silver salt precipitation-dichromate method for the determination of chemical oxygen demand in high-chloride mine waters. This document is applicable to the determination of chemical oxygen demand in high-chlorine mine water in coal mines. The chloride ion content range is 1000-7000mg/L. When exceeding this limit, it can be diluted and measured. When the sampling volume is 10.0ml, the detection limit of this method is 4mg/L, and the lower limit of determination is 16mg/L.
T/NAIA 0161-2022 history
- 2022 T/NAIA 0161-2022 Determination of chemical oxygen demand in high chlorine mine water in coal mines by silver salt precipitation-dichromate method
