ISO INTERNATIONAL STANDARD 13168 Second edition 2023-11 Water quality - Simultaneous determination of tritium and carbon 14 activities - Test method using liquid scintillation counting Qualité de I'eau-Détermination simultanée des activités volumiques du tritium et du carbone 14 - Méthode par comptage des scintillations en milieu liquide Reference number IS0 13168:2023(E) rso @IS02023 IS0 13168:2023(E) COPYRIGHT PROTECTED DOCUMENT @ISO2023 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 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 Email: [email protected] Website: www.iso.org Published in Switzerland i @ IS0 2023 - All rights reserved