ISO INTERNATIONAL STANDARD 13165-1 Second edition 2022-11 Water quality Radium-226 Part 1: Test method using liquid scintillation counting Qualité de I'eau Radium-226- Partie 1: Methode d'essai par comptage des scintillations en milieu liquide Reference number IS0 13165-1:2022(E) so ISO2022 IS0 13165-1:2022(E) COPYRIGHT PROTECTED DOCUMENT @IS02022 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: +4122 749 0111 Email: [email protected] Website: www.iso.org Published in Switzerland ii @ IS0 2022 - All rights reserved