ISO 4313:1976 Preview

Washing powders -- Determination of total phosphorus(V) oxide content -- Quinoline phosphomolybdate gravimetric method

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.


General information

  • Status :  Published
    Publication date : 1976-11
  • Edition : 1
    Number of pages : 3
  • :
    ISO/TC 91
    Surface active agents
  • 71.100.40
    Surface active agents

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