This standard was last reviewed and confirmed in 2022. Therefore this version remains current.
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.
Status: PublishedPublication date: 1976-11
Edition: 1Number of pages: 3
Technical Committee: ISO/TC 91 Surface active agents
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