ISO INTERNATIONAL STANDARD 23922 First edition 2020-09 Cigarettes Determination of selected carbonyls in the mainstream smoke of cigarettes with an intense smoking regime - Method using high performance liquid chromatography Cigarettes - Dosage de carbonyles selectionnés dans le courant principal de la fumee de cigarette avec un regime de fumage intense -Méthode par chromatographie liquide haute performance Reference number IS0 23922:2020(E) ISO ISO2020 IS0 23922:2020(E) COPYRIGHTPROTECTEDDOCUMENT @ ISO 2020 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 40i : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +4122 749 0111 Email: copyright@iso.org Website: www.iso.org Published in Switzerland ii @ IS0 2020 - All rights reserved