INTERNATIONAL ISO/ASTM STANDARD 51900 Third edition 2023-04 Guidance for dosimetry for radiation research Lignes directrices de la dosimétrie pour la recherche dans le domaine de Il'irradiation Reference number IS0/ASTM 51900:2023(E) INTERNATIONAL IS0/ASTMInternational2023 IS0/ASTM 51900:2023(E) COPYRIGHT PROTECTED DOCUMENT @ IS0/ASTM International 2023 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 ISO copyright office ASTM International CP 401 : Ch. de Blandonnet 8 100 Barr Harbor Drive, PO Box C700 CH-1214 Vernier, Geneva West Conshohocken, PA 19428-2959, USA Phone: +41 22 749 01 11 Phone: +610 832 9634 Fax: +610 832 9635 Email: [email protected] Email: [email protected] Website: www.iso.org Website: www.astm.org Published in Switzerland ii @IS0/ASTM International2023-All rightsreserved