標(biāo)準(zhǔn)號：BS ISO 1271-1983
中文標(biāo)準(zhǔn)名稱：香精油.羰基值的測定.游離羰氨法
英文標(biāo)準(zhǔn)名稱：Essential oils - Determination of carbonyl value - Free hydroxylamine method
標(biāo)準(zhǔn)類型：B36
發(fā)布日期：2001/8/15 12:00:00
實施日期：2001/9/15 12:00:00
中國標(biāo)準(zhǔn)分類號：B36
國際標(biāo)準(zhǔn)分類號：71.100.60
適用范圍：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.