標準號：ISO 1279-1996
中文標準名稱：精油 羰值的測定 鹽酸羥胺電位法
英文標準名稱：Essential oils - Determination of carbonyl value - Potentiometric methods using hydroxylammonium chloride
標準類型：Y41
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：Y41
國際標準分類號：71.100.60
適用范圍：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.