HJ 889-2017
Determination of Soil Cation Exchange Capacity Hexammine Cobalt Trichloride Leaching-Spectrophotometric Method (English Version)
- Standard No.
- HJ 889-2017
- Language
- Chinese, Available in English version
- Release Date
- 2017
- Published By
- Professional Standard - Environmental Protection
- Latest
- HJ 889-2017
- Scope
- This standard specifies the hexaammonium cobalt trioxide extraction-spectrophotometric method for determining the cation exchange capacity in soil. This standard is applicable to the determination of cation exchange capacity in soil. When the sampling volume is 3.5 g, the extract volume is 50.0 ml, and a 10 mm optical path colorimeter is used, the detection limit of the cation exchange capacity determined by this standard is 0.8 cmol/kg, and the lower determination limit is 3.2 cmol/kg. .
HJ 889-2017 Referenced Document
- HJ 613 Soil.Determination of dry matter and water content.Gravimetric method
- HJ/T 166 Technical specification for soil environmental monitoring
HJ 889-2017 history
- 2017 HJ 889-2017 Determination of Soil Cation Exchange Capacity Hexammine Cobalt Trichloride Leaching-Spectrophotometric Method
