ISO INTERNATIONAL STANDARD 22515 First edition 2021-05 Water quality - Iron-55 Test method using liquid scintillation counting Qualité de I'eau -Fer-55- Méthode d'essai par comptage des scintillations en milieu liquide Reference number ISO 22515:2021(E) ISO @IS02021 IS0 22515:2021(E) COPYRIGHT PROTECTED DOCUMENT @ iS0 2021 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: +41 22 749 0111 Email: [email protected] Website: www.iso.org Published in Switzerland i @ IS0 2021 - All rights reserved