Status : Published (Under review)
This standard was last reviewed and confirmed in 2021. Therefore this version remains current.
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Abstract

The determination is carried out in the following way: Decomposition of the soap with sulphuric acid, and extraction of the fatty acids with light petroleum. Oxidation of the glycerol by periodic acid to formic acid and formaldehyde, and titration of the formic acid produced using a pH meter.

General information

  • Status
     : Published
    Publication date
     : 1975-05
    Stage
    : International Standard confirmed [90.93]
  • Edition
     : 1
    Number of pages
     : 3
  • Technical Committee :
    ISO/TC 91
    ICS :
    71.100.40 
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