ISO INTERNATIONAL STANDARD 22947 First edition 2019-09 Cigarettes Determination of carbon monoxide in the vapour phase of cigarette smoke with an intense smoking regime NDIR method Cigarettes-Dosage du monoxyde de carbonedans la phasegazeuse de la fumée de cigarette obtenue avec un regime de fumage intense MéthodeIRND Referencenumber IS022947:2019(E) ISO @IS02019 IS022947:2019(E) COPYRIGHTPROTECTEDDOCUMENT @ISO2019 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 orIso's memberbody in the countryof therequester. ISO copyright office CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone:+41227490111 Fax:+4122749 09 47 Email: copyright@iso.org Website: www.iso.org Published in Switzerland ii @ IS0 2019- All rights reserved