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ISO 1271:1983

Essential oils — Determination of carbonyl value — Free hydroxylamine method
1. 12. 1983.

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90.93     16. 6. 2022.

ISO

ISO/TC 54

Međunarodni standard

71.100.60  

francuski   engleski  

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Apstrakt

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.

Životni ciklus

TRENUTNO

OBJAVLJEN
ISO 1271:1983
90.93 Odluka o potvrđivanju standarda
16. 6. 2022.

Nacionalna preuzimanja

SRPS ISO 1271:1992  
ISS

Etarska ulja - Određivanje karbonilnog broja - Metoda sa slobodnim hidroksilaminom (identičan sa ISO 1271:1983)

90.93   Odluka o potvrđivanju standarda

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