ISO INTERNATIONAL STANDARD 20044 First edition 2022-12 Measurement of radioactivity in the environment Air: aerosol particles - Test method using sampling by filter media Mesurage de la radioactivite dans I'environnement - Air: particules d'aérosol - Méthode d'essai utilisant I'échantillonnage par un média filtrant Reference number ISO 20044:2022(E) ISO @IS02022 IS0 20044:2022(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 2022 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may 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 01 11 Email: [email protected] Website: www.iso.org Published in Switzerland ii @ IS0 2022 - All rights reserved