PRICES include / exclude VAT
download between 0-24 hoursReleased: 1983
ISO 1271:1983
ISO 1271:1983-Essential oils — Determination of carbonyl value — Free hydroxylamine method
Format
Availability
Price and currency
English PDF
Immediate download
46.00 EUR
English Hardcopy
In stock
46.00 EUR
French PDF
Immediate download
46.00 EUR
French Hardcopy
In stock
46.00 EUR
Standard´s number: | ISO 1271:1983 |
Pages: | 4 |
Edition: | 2 |
Released: | 1983 |
DESCRIPTION
ISO 1271:1983
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.