ISO 5310:1986
Fertilizers; Determination of potassium content; Titrimetric method
- Standard No.
- ISO 5310:1986
- Release Date
- 1986
- Published By
- International Organization for Standardization (ISO)
- Status
- Latest
- ISO 5310:1986
- Scope
- The method consists in precipitating of potassium ions by an excess of sodium tetraphenylborate (NaTPB) in a weakly alkaline medium, filtrating and determing of the unused NaTPB by back titration with cetyltrimethylammoniumbromide solution. The test solution shall be prepared as specified in ISO 5317 or ISO 7407.
ISO 5310:1986 history
- 1986 ISO 5310:1986 Fertilizers; Determination of potassium content; Titrimetric method
