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ISO 4313:1976 PDF
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Washing powders — Determination of total phosphorus(V) oxide content — Quinoline phosphomolybdate gravimetric method
The determination is carried out in the following way: Hydrolysis of polyphosphates by nitric acid. Precipitation of phosphates in the form of quinoline phosphomolybdate in acetone solution. Drying and weighing of the precipitate.
| Edition | 1976 |
|---|---|
| Published Date | 1976 |
| Published By | International Standardization Organisation |
| Page Count | 3 |
