Norm

ISO 1271:1983 en

Essential oils - Determination of carbonyl value - Free hydroxylamine method

31,57

Over deze norm

Status Definitief
Aantal pagina's 4
Commissie Beleidscommissie Landbouw & Levensmiddelen
Gepubliceerd op 01-12-1983
Taal Engels
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.

Details

ICS-code 71.100.60
Nederlandse titel Essential oils - Determination of carbonyl value - Free hydroxylamine method
Engelse titel Essential oils - Determination of carbonyl value - Free hydroxylamine method

Winkelwagen

Subtotaal:

Ga naar winkelwagen