ISO 935:1988

Animal and vegetable fats and oils — Determination of titre

Publication date: 21 jan 1988

General information

Current stage: 90.93 Effective date: 17 jan 2023

Originator: ISO

Owner: ISO/TC 34/SC 11

Type: International Standard

ICS: 67.200.10

Gjuha: frëngjisht anglisht

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Statusi: Publikuar

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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
17 jan 2023

National adoptions

SSH ISO 935:2001

DPS

Vajra dhe yndyrna bimore dhe shtazore - Përcaktmi i titullit

60.60 Standard published

DPS/KT 307 më tepër