ISO INTERNATIONAL STANDARD 16928 First edition 2014-04-15 Essential oil of ginger [Zingiber officinale Roscoel Huile essentielle de gingembre [Zingiber officinale Roscoe] Reference number ISO 16928:2014(E) LSO @IS02014 HS under Noreproo ed without license from IHS IS0 16928:2014(E) COPYRIGHTPROTECTEDDOCUMENT @ISO2014 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISOcopyrightoffice Case postale 56 : CH-1211 Geneva 20 Tel.+41 22 749 01 11 Fax +41 22 749 09 47 E-mail copyright@iso.org Web www.iso.org Published in Switzerland @ IS0 2014 - All rights reserved ity of Alberta/5966844001, User=sharabiani, shahramfs No reproductic NotforResale, 04/23/2014 04:53:24MD IS0 16928:2014(E) Contents Page Foreword ..iv 1 Scope 1 2 Normative references .1 3 Terms and definitions ..1 4 Requirements 4.1 Appearance .1 4.2 Colour 4.3 Odour. 1 4.4 Relative density at 20 °C, d20 .2 4.5 Refractive index at 20 °C .2 4.6 Optical rotation at 20 °C. .2 4.7 Chromatographic profile .2 4.8 Flashpoint. 2 5 Sampling. .3 6 Test methods. .3 6.1 .3 6.2 Refractive index at 20 °C .3 6.3 Optical rotation at 20 °C. .3 6.4 Chromatographic profile .3 7 Packaging, labelling, marking and storage .3 Annex A (informative) Typical chromatograms of the analysis by gas chromatography of the essential oil of ginger (Zingiber officinale Roscoe) 4 Annex B (informative) Flashpoint .11 Bibliography .12 iii se with ISi withoutlicense from IHS Not for