Reference number
ISO 1279:1996
ISO 1279:1996
© ISO 2026
International Standard
ISO 1279:1996
Essential oils — Determination of carbonyl value — Potentiometric methods using hydroxylammonium chloride
Edition 3
1996-12
1996-12
ISO 1279:1996
5880
Published
(Edition 3, 1996)
This publication was last reviewed and confirmed in 2022.
Therefore this version remains current.
ISO 1279:1996
ISO 1279:1996
5880
CHF
44
Abstract
Gives two methods for the potentiometric determination of the carbonyl value of essential oils which contain carbonyl compounds. Method 1 is based on a cold oximation reaction with hydrxoylammonium chloride with exception of citronellal which need a low temperature to avoid cyclization phenomena and acetylization. Method 2 is based on a hot oximation reaction with hydroxylammonium chloride and applies to essential oils whose main constituents are ketones which are general oximable only with difficulty.
Life cycle
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Previously
WithdrawnISO 1279:1973
WithdrawnISO 1279:1984
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Now