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ISO 935:1988

Animal and vegetable fats and oils — Determination of titre

Jan 21, 1988

General information

90.93     Jan 17, 2023

ISO

ISO/TC 34/SC 11

International Standard

67.200.10  

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Published

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Scope

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.

Life cycle

NOW

PUBLISHED
ISO 935:1988
90.93 Standard confirmed
Jan 17, 2023

National adoptions

SSH ISO 935:2001  
DPS

Animal and vegetable fats and oils — Determination of titre

60.60 Standard published

DPS/KT 307 more