ISO INTERNATIONAL STANDARD 4718 Second edition 2004-05-15 Oil of lemongrass [Cymbopogon flexuosus (Nees ex Steudel) J.F. Watson) Huile essentielle de lemongrass [Cymbopogon flexuosus (Nees ex Steudel) J.F. Watson] AA Reference number ISO 4718:2004(E) ISO @ ISO 2004 ISO 4718:2004(E) PDFdisclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In accepts no liability in this area. AdobeisatrademarkofAdobeSystemsIncorporated Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. 2 ISO2004 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, IsO's member body in the country of the requester. ISO copyright office Case postale 56 : CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 2 E-mail [email protected] Web www.iso.org Published in Switzerland ii @ ISO 2004 - All rights reserved ISO 4718:2004(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies technical committees. Each member body interested in a subject for which a technical committee has been International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2 adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO 4718 was prepared by Technical Committee ISO/TC 54, Essential oils. This second edition cancels and replaces the first edition (isO 4718:1981), which has been technically revised. @IsO2004-Allrightsreserveo ...... ... INTERNATIONAL STANDARD ISO 4718:2004(E) Oil of lemongrass [Cymbopogon flexuosus (Nees ex Steudel) J.F. Watsonj 1 Scope 3 Terms and definitions This International Standard specifies certain charac- For the purposes of this document, the following teristicsoftheoil of lemongrass[Cymbopogon terms and definitions apply. flexuosus (Nees ex Steudel) J.F. Watson], in order to facilitate assessment of its quality. 3.1 oil of lemongrass essential oil obtained by steam distillation of the Normative references fresh aerial parts of Cymbopogon flexuosus (Nees 2 ex Steudel) J.F. Watson, of the Poaceae family. The following referenced documents are indispen- NOTE For information on the CAS number, see sable for the application of this document. For dated references, only the edition cited applies. For ISO/TR21092. undated references,thelatest editionofthe referenced document (including any amendments) applies. 4 Requirements ISO/TR 210, Essential oils — General rules for 4.1 Appearance packaging, conditioning and storage Clear, mobile liquid. ISO/TR211, Essential oils General rules for labelling and marking of containers 4.2 Colour Iso 212, Essential oils — Sampling Pale yellow to yellowish brown. IsO 279, Essential oils — Determination of relative density at 20 °C - Reference method 4.3 Odour ISO280, Essential oils Determination of Strong, green, resembling that of citral. refractive index 4.4 Relative density at 20 °C, d2 Iso 592, Essential oils - Determination of optical rotation Minimum: 0,885 Iso 875, Essential oils—Evaluation of miscibility in Maximum: 0,905 ethanol 4.5 Refractive index at 20 °C IsO 11024-1,Essential oils— General guidance on ; chromatograpnic profies - -Part 1: Preparation of Minimum: 1,483 chromatographi