Washing powders — Determination of total phosphorus(V) oxide content — Quinoline phosphomolybdate gravimetric method
NORMA vydaná dňa 1.11.1976
Označenie normy: ISO 4313:1976
Dátum vydania normy: 1.11.1976
Počet strán: 3
Približná hmotnosť: 9 g (0.02 libier)
Krajina: Medzinárodná technická norma
Kategória: Technické normy ISO
Description / Abstract: 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.