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.
BS ISO 1279:2001 history
2001BS ISO 1279:2001 Essential oils - Determination of carbonyl value - Potentiometric methods using hydroxylammonium chloride
2001BS ISO 1279:1996 Essential oils. Determination of carbonyl value. Potentiometric methods using hydroxylammonium chloride