Hivatkozási szám

MSZ ISO 1279:2003

Dokumentumazonosító

124911

Cím

Ilóolajok. A karbonilszám meghatározása. Potenciometriás módszerek hidroxil-ammónium-kloriddal

Angol cím

Essential oils. Determination of carbonyl value. Potentiometric methods using hydroxylammonium chloride

Alkalmazási terület

This International Standard specifies two methods for the potentiometric determination of the carbonyl value of essential oils which contain carbonyl compounds, either aldehydes or ketones. Method I (see clause 5), is based on a cold oximation reaction with hydroxylammonium chloride. It applies to essential oils whose main constituents are easily oximable aldehydes and ketones, with the exception of citronella1 which needs a low temperature to avoid cyclization phenomena and acetalization. NOTE 1 In the case of citronella1 the free hydroxylamine method described in IS0 1271 should be used. NOTE 2 Examples of essential oils concerned are lemongrass, hesperydus and rue. Method II (see clause 6), is based on a hot oximation reaction with hydroxylammonium chloride. It applies to essential oils whose main constituents are ketones which are in general oximable only with difficulty. NOTE 3 Examples of essential oils concerned are vetiver, Dalmation sage and white artemisia which contain methylketones oximable only with difficulty. The International Standard for a specific essential oil will specify the method to be used, whether this is the free hydroxylamine method described in IS0 1271 or another method.

ICS

71.100.60 Illóolajok

Műszaki Bizottság

A szabvány nyelve

angol

Az érvényesség kezdete

2003-07-01

Forrás

idt ISO 1279:1996

Előd

Utód

Módosítás

SZK-közlemények

Kapcsolódó európai jogszabály

A szabvány

kapható formátuma

Papír ,
PDF (letöltés) (a fájl mérete: 831819) ,

oldalszáma

5 oldal; C kategória

ára

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