Abstract / scope
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.
ISO 4313:1976Published
Washing powders — Determination of total phosphorus(V) oxide content — Quinoline phosphomolybdate gravimetric method
Poudres à laver — Dosage de l'oxyde de phosphore (V) total — Méthode gravimétrique au phosphomolybdate de quinoléine