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ISO 4313:1976

Washing powders — Determination of total phosphorus(V) oxide content — Quinoline phosphomolybdate gravimetric method ISO 4313:1976

Publication date:   Nov 1, 1976

General information

90.93 Standard confirmed   Aug 29, 2022

ISO

ISO/TC 91 Surface active agents

International Standard

71.100.40   Surface active agents

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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.

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PUBLISHED
ISO 4313:1976
90.93 Standard confirmed
Aug 29, 2022