Essential oils. Determination of ester values, before and after acetylation, and evaluation of the contents of free and total alcohols

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

15-09-2001

Publisher

British Standards Institution

This International Standard specifies a method to evaluate the contents of free alcohols and total alcohols in essential oils by determination of ester values before and after acetylation by acetic anhydride in the presence of sodium acetate.

The method is not applicable to essential oils containing appreciable quantities of tertiary alcohols (for example linalol and terpineols), which would not be completely acetylated.

NOTE: For these essential oils the method given in ISO 3794¹⁾ should be used.

The method is not applicable to essential oils containing appreciable quantities of phenols, lactones, aldehydes or enolysable ketones, which would be acetylated in addition to free alcohols.

Committee	W/-
DevelopmentNote	Reviewed and Confirmed by BSI, May 2007. (04/2007)
DocumentType	Standard
Pages	12
PublisherName	British Standards Institution
Status	Current

Standards	Relationship
ISO 1241:1996	Identical

ISO 212:2007	Essential oils Sampling
ISO 709:2001	Essential oils Determination of ester value
ISO 385-1:1984	Laboratory glassware — Burettes — Part 1: General requirements
ISO 356:1996	Essential oils Preparation of test samples