ISO 3217 NTERNATIONAL STANDARD INTERNATIONAL ORGANIZATION FOR STANDARDIZATION MEXCAYHAPOIHA OPIAHM3ALIWR HO CTAHIAPTM3ALIWW ORGANISATION INTERNATIONALE DE NORMALISATION Oil of lemongrass (Cymbopogon citratus) Huile essentielle de lemongrass (Cymbopogon citratus) First edition - 1974-08-15 AUS -- $ 74 ANsi iiricrnai Doc Sect ISO 3217-1974 (E) Ref. No. ISO 3217-1974 (E) UDC 668.524.004.1 Descriptors : essential oils, lemongrass, specifications, materials specifications. Price based on 2 pages FOREWORD ISO (the International Organization for Standardization) is a worldwide federation of national standards institutes (iso Member Bodies). The work of developing International Standards is carried out through Iso Technical Committees. Every Member Body interested in a subject for which a Technical Committee has been set up has the right to be represented on that Committee. International organizations, governmental and non-governmental, in liaison with IsO, also take part in the work. Draft Internationai Standards adopted by the Technical Committees are circulated to the Member Bodies for approval before their acceptance as international Standards by the ISO Council. Internationa! Standard !sO 3217 was drawn up by Technical Committee ISO/TC 54, Essential oils, and circulated to the Member Bodies in May 1973. It has been approved by the Member Bodies of the following countries : Australia France South Africa, Rep. of Belgium Italy Spain Turkey Bulgaria Netheriands Czechoslovakia Portugal United Kingdom Romania Yugoslavia Egypt, Arab Rep. of No Member Body expressed disapproval of the document. International OrganisationforStandardization,1974 Printed in Switzerland ISO 3217-1974 (E) INTERNATIONAL STANDARD Oil of lemongrass (Cymbopogon citratus) 1 SCOPE AND FIELD OF APPLICATION 4.2 Colour This International Standard specifies certain characteristics Pale yellowto orange-yellow. of oil of lemongrass (Cymbopogon citratus)1), with a view to facilitating the assessment of its quality. 4.3 Odour Characteristic with a strong note of citral. 2 REFERENCES 4.4 Relative density at 20/20 °c ISO/R 210, Essential oils -Packing. Minimum : 0,872 Essential oils - Labelling and marking ISO/R211, containers. Maximum : 0,897 IsO 212, Essential oils -- Sampling. 4.5 Refractive index at 20 °c Determination of the density and relative ISO/R279， Minimum : 1.483 0 density of essential oils. Maximum : 1,489 0 Determination of the refractive index of ISO/R280, essential oils. 4.6 Optical rotation at 20 °c ISO/R 592, Determination of the optical rotation of Range from - 3° to + 1°. essential oils. 1SO/R 875, Determination of solubility of essential oils in 4.7 Carbonyl compounds content, expressed as citral ethanol. Minimum : 75 % ISO 1279, Essential oils - Determination of the content of Hydroxylammonium chioride carbonyl compounds 4.8 Solubility in ethanol at 20 °c method. Freshly distilled oils are soluble in 70 % (V/V) ethanol. The Essential oils -- Determination of the residue on solubility diminishes on storage and the oil may become evaporation, 2) insoluble in 90 % (V/V) ethanoi. 3 DEFINITION Residue on vacuum distillation 4.9 oil of lemongrass (Cymbopogon citratus) : The oil obtained Minimum :To be specified later by steam distillation of the grass Cymbopogon citratus (A.P. de Candolle) Stapf. Maximum : To be specified later. 4 REQUIREMENTS 5 SAMPLING See ISO 212. 4.1 Appearance Minimum volume of final sample : 50 ml. Clear, mobile liquid. 1)Alsoknownin trade as"oil of West Indian lemongrass" 2)In preparation.