ISO 5310:1986
$12.35
Fertilizers — Determination of potassium content — Titrimetric method
| Published By | Publication Date | Number of Pages |
| ISO | 1986-12 | 6 |
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.
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