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ISO 4313:1976 (R2022)
Washing powders — Determination of total phosphorus(V) oxide content — Quinoline phosphomolybdate gravimetric method
Summary
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.
Notes
90.93 : Norme internationale confirmée
Technical characteristics
| Publisher | International Organization for Standardization (ISO) |
| Publication Date | 11/01/1976 |
| Confirmation Date | 08/29/2022 |
| Edition | 1 |
| Page Count | 3 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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Previous versions
01/11/1976
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