Tagasi

ISO 1271:1983

Essential oils -- Determination of carbonyl value -- Free hydroxylamine method

Üldinfo
Kehtiv alates 01.12.1983
Tegevusala (ICS grupid)
71.100.60 Eeterlikud õlid
Direktiivid või määrused
puuduvad

Standardi ajalugu

Staatus
Kuupäev
Tüüp
Nimetus
01.12.1983
Põhitekst
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.
*
*
*
PDF
55,07 € koos KM-ga
Paber
55,07 € koos KM-ga
Standardi monitooring