ISO 1271:1983
Essential oils; Determination of carbonyl value; Free hydroxylamine method
- Standard No.
- ISO 1271:1983
- Release Date
- 1983
- Published By
- International Organization for Standardization (ISO)
- Status
- Replace By
- ISO 1271:1983/Cor 1:1985
- Latest
- ISO 1271:1983/Cor 1:1985
- Scope
- 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.
ISO 1271:1983 history
- 1970 ISO 1271:1983/Cor 1:1985 Determination of the carbonyl value of essential oils - Technical Corrigendum 1 for the free hydroxylamine method
- 1983 ISO 1271:1983 Essential oils; Determination of carbonyl value; Free hydroxylamine method
- 1972 ISO 1271:1972 Title missing - Legacy paper document
