ISO INTERNATIONAL STANDARD 19461-1 First edition 2018-07 Radiological protection - Measurement for the clearance of waste contaminated with radioisotopes for medical application - Part 1: Measurement of radioactivity Radioprotection - Mesurage pour la libération des déchets contaminés par des radioisotopes lors des applications medicales - Partie 1: Mesurage de la radioactivite Reference number IS0 19461-1:2018(E) International Organization for Standardization @ IS0 2018 tandards and Technology 9972181 IS0 19461-1:2018(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 2018 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 CP401·Ch.deBlandonnet8 CH-1214 Vernier, Geneva Phone:+4122 749 0111 Fax: +41 22 749 09 47 Email: [email protected] Website: www.iso.org Published in Switzerland ganizationfor Standardization ensee-Shenzhen Institute of Standards andeclS0log?&s- All rights reserved rious National Standards Bodies IS0 19461-1:2018(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. ..1 2 Normative references ..1 3 Terms and definitions ..1 4 Fundamentals .2 4.1 Radioisotopes for medical application .2 4.1.1 General. .2 4.1.2 Nuclear medicine. .3 4.1.3 Radiation therapy .3 4.2 Application of clearance level 4 4.3 Classification and characteristics of radioactive waste. .5 5 Measurement method and procedure .5 5.1 General. 5 5.2 Procedure for 1251. .6 5.3 Procedure for other radionuclides . 6 6 Requirements .7 6.1 Control of the radioactive waste to be stored for disposal .7 6.2 Measurement before storage. 1 6.3 Storage of radioactive waste .1 6.4 Disposal method .7 7 Uncertainty 8 Documentation of radioactivity measurement results .8 9 Reporting of results 10 Quality control. .9 Annex A (informative) Example of the procedure for the clearance of radioactive waste ..10 Annex B (informative) Measurement result of the radioactivity of the radioactive waste ..14 Bibliography ..18 iii Standards and Technology 9972181