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download between 0-24 hoursReleased: 1976
Washing powders - Determination of total phosphorus(V) oxide content - Quinoline phosphomolybdate gravimetric method
|Standard´s number:||ISO 4313|
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.