ISO 1279:1996 PDF

Scope: 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.

ISO 1279:1996 history

1996 ISO 1279:1996 Essential oils - Determination of carbonyl value - Potentiometric methods using hydroxylammonium chloride
1984 ISO 1279:1984 Essential oils; Determination of carbonyl value; Hydroxylammonium chloride method
1973 ISO 1279:1973 Essential oils — Determination of carbonyl compounds content — Hydroxylammonium chloride method