Published
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.
PUBLISHED
ISO 4313:1976
90.93
Standard confirmed
Aug 29, 2022
Washing powders — Determination of total phosphorus(V) oxide content — Quinoline phosphomolybdate gravimetric method
90.93 Standard confirmed