GB/T 8573-1999
Determination of available phosphorus content for compound fertilizers (English Version)
- Standard No.
- GB/T 8573-1999
- Language
- Chinese, Available in English version
- Release Date
- 1999
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Status
- 2011-03
- Replace By
- GB/T 8573-2010
- Latest
- GB/T 8573-2017
- Scope
- This standard specifies the extraction and determination methods of water-soluble phosphorus and available phosphorus in compound fertilizers, and specifies the calculation method of the percentage of water-soluble phosphorus in available phosphorus. This standard applies to compound fertilizers composed of one or more phosphate fertilizers, nitrogen fertilizers, and potassium fertilizers (including blended fertilizers and various special fertilizers), and does not apply to ammonium phosphate, nitrate phosphate fertilizer, potassium dihydrogen phosphate, etc. that are synthesized by chemical methods. of compound fertilizers.
GB/T 8573-1999 history
- 2017 GB/T 8573-2017 Determination of available phosphorus content for compound fertilizers
- 2010 GB/T 8573-2010 Determination of available phosphorus content for compound fertilizers
- 1999 GB/T 8573-1999 Determination of available phosphorus content for compound fertilizers
