Reference number
ISO 935:1988
© ISO 2025
International Standard
ISO 935:1988
Animal and vegetable fats and oils — Determination of titre
Edition 1
1988-01
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Published (Edition 1, 1988)
This publication was last reviewed and confirmed in 2023. Therefore this version remains current.

ISO 935:1988

Language
Format
CHF 43
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Abstract

Specifies a method for the preparation of the water-insoluble fatty acide and determination of their solidification temperature. The method is not applicable to titres below 30 degrees centigrade. The principle is saponification of a test portion with potassium hydroxide solution in glycerol, dissolution of the soap in water and neutralization. Washing of the separated insoluble fatty acids with hot sodium chloride solution, drying and filtering. Melting of the prepared fatty acids, cooling them, with continuous stirring, and observation of the solidification temperature.

General information

  • Status
     : Published
    Publication date
     : 1988-01
    Stage
    : International Standard confirmed [90.93]
  • Edition
     : 1
    Number of pages
     : 3
  • Technical Committee :
    ISO/TC 34/SC 11
    ICS :
    67.200.10 
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