ISO 2869:1973
ISO 2869:1973

Status : Published (Under review)

This standard was last reviewed and confirmed in 2022. Therefore this version remains current.
Format Language
std 1 42 PDF
std 2 42 Paper
  • CHF42
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The determination is carried out as follows: Titration of an aliquiot portion of a sample solution with benzethonium chloride solution according to the direct two-phase titration procedure describes in ISO 2271. Hydrolysis by refluxing under alkaline conditions of a second aliquot portion of the sample solution. Titration of unhydrolyzed anionic-active matter with benzethonium chloride solution as before. Calculation of the contents of hydrolyzable and non-hydrolyzable anionic-active matter from the results obtained.

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General information

  •  : Published
     : 1973-12
    : International Standard confirmed [90.93]
  •  : 1
     : 2
  • ISO/TC 91
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