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SRPS ISO 1271:1992

Essential oils — Determination of carbonyl value — Free hydroxylamine method

Dec 2, 1992
Dec 2, 1992

General information

90.93     Jun 16, 2022

90.20    Apr 15, 2027

ISS

H054

International Standard

71.100.60  

Serbian  

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Scope

The determination is carried out by converting the carbonyl compounds to oximes by reaction with free hydroxylamine liberated in a mixture of hydroxylammoniumchloride and potassium hydroxide. The excess alkali is titrated with hydrochloric acid solution, either colorimetrically or potentiometrically. The method is applicable to essential oils which contain carbonyl compounds (especially ketones, excluding methylketones) which are difficult to convert to oximes by the method specified in ISO 1279. The method is not applicable to essential oils which contain substantial amounts of esters of other alkali-sensitive constituents.

Life cycle

NOW

PUBLISHED
SRPS ISO 1271:1992
90.93 Standard confirmed
Jun 16, 2022

Related project

Adopted from ISO 1271:1983