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

Standard No.

ISO 4313:1976

Release Date

1976

Published By

International Organization for Standardization (ISO)

Latest

ISO 4313:1976

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 4313:1976 history

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