ISO INTERNATIONAL STANDARD 13160 Second edition 2021-07 Water quality - Strontium 9o and strontium 89 - Test methods using liquid scintillation counting or proportional counting Qualite de I'eau - Strontium 90 et strontium 89-Méthodes d'essai proportionnel Reference number IS0 13160:2021(E) ISO ISO2021 IS0 13160:2021(E) COPYRIGHTPROTECTEDDOCUMENT @IS02021 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 below or Iso's member body in the country of the requester. IsO copyrightoffice 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 ii @ IS0 2021 - All rights reserved