HJ 704-2014
Soil quality.Determination of available phosphorus.Sodium hydrogen carbonate solution-Mo-Sb anti spectrophotometric method (English Version)
- Standard No.
- HJ 704-2014
- Language
- Chinese, Available in English version
- Release Date
- 2014
- Published By
- Professional Standard - Environmental Protection
- Latest
- HJ 704-2014
- Scope
- This standard specifies the sodium bicarbonate extraction-molybdenum antimony spectrophotometric method for the determination of available phosphorus in soil. This standard is applicable to the determination of available phosphorus in calcareous and neutral soils. When the sampling amount is 2.50 g, 50 ml of sodium bicarbonate solution is used for extraction, and a 10 mm cuvette is used, the detection limit of this method is 0.5 mg/kg, and the lower limit of determination is 2.0 mg/kg.
HJ 704-2014 Referenced Document
- HJ 613 Soil.Determination of dry matter and water content.Gravimetric method
- HJ/T 166 Technical specification for soil environmental monitoring
- NY/T 395-2012 Technical rules for monitroing of environmental quality of farmland soil
HJ 704-2014 history
- 2014 HJ 704-2014 Soil quality.Determination of available phosphorus.Sodium hydrogen carbonate solution-Mo-Sb anti spectrophotometric method
