ISO 7611:1985Withdrawn

Oils of lemon and petitgrain citronnier, and oil of lime obtained by a mechanical process — Determination of citral (neral + geranial) content — Gas chromatographic method on capillary columns

Huiles essentielles de citron et de petitgrain citronnier et huile essentielle de lime obtenue par des procédés mécaniques — Détermination de la teneur en citral (néral + géranial) — Méthode par chromatographie en phase gazeuse sur colonne capillaire

This edition has been replaced by ISO 8899:2003, ISO 855:2003, ISO 3519:2005.

Abstract / scope

The method consists in analyzing a small quantity of essential oil on a column of small diameter but great length under specified conditions. The citral content is determined by using the internal standard method. Polyethylene glycol 20000 is used as stationary phase. Operating temperatures: Oven: linear temperature programming from 80 to 180 °C at a rate of 2 °C/min. Injection system: about 190 to 200 °C. Detector: 200 to 250 °C, maximum.

Life cycle

Replaced by

ISO 8899:2003PublishedOil of lemon petitgrain [Citrus limon (L.) Burm. f.]International Standard · Published 28 Nov 2003 · ISO/TC 54 ISO 855:2003PublishedOil of lemon [Citrus limon (L.) Burm. f.], obtained by expressionInternational Standard · Published 1 Dec 2003 · ISO/TC 54 ISO 3519:2005PublishedOil of lime distilled, Mexican type (Citrus aurantifolia (Christm.) Swingle)International Standard · Published 18 Oct 2005 · ISO/TC 54