ISO INTERNATIONAL STANDARD 20714 First edition 2019-08 E-liquid Determination of nicotine, propylene glycol and glycerol in liquids used in electronic nicotine delivery devices Gas chromatographic method E-liquide - Détermination de la teneur en nicotine, propylene glycol et glycérol dans les liquides utilisés avec les systemes electroniques de delivrance de nicotine - Meéthode par chromatographie en phase gazeuse Reference number IS0 20714:2019(E) C @ IS0 2019 IS0 20714:2019(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 2019 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either IsO at the address below or Iso's member body in the country of the requester. ISO copyright office CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +41 22 749 01 11 Fax: +41 22 749 09 47 Email: copyright@iso.org Website: www.iso.org Published in Switzerland ii @ IS0 2019 - All rights reserved