DB22/T 2270-2018
Determination of Ammonium Nitrogen and Nitrate Nitrogen in Farmland Soil by Flow Injection Analysis (English Version)
- Standard No.
- DB22/T 2270-2018
- Language
- Chinese, Available in English version
- Release Date
- 2018
- Published By
- Jilin Provincial Standard of the People's Republic of China
- Latest
- DB22/T 2270-2018
- Replace
- DB22/T 2270-2015
- Scope
- This standard specifies the principles, reagents and materials, instruments and equipment, sample collection, preservation and preparation, analysis steps, result calculation, repeatability and reproducibility for the determination of ammonium nitrogen and nitrate nitrogen content in farmland soil by flow injection analysis. This standard is applicable to the determination of ammonium nitrogen and nitrate nitrogen content in farmland soil.
DB22/T 2270-2018 history
- 2018 DB22/T 2270-2018 Determination of Ammonium Nitrogen and Nitrate Nitrogen in Farmland Soil by Flow Injection Analysis
- 2015 DB22/T 2270-2015 Determination of Ammonium Nitrogen and Nitrate Nitrogen in Farmland Soil by Flow Injection Analysis
