ISO INTERNATIONAL STANDARD 14644-8 Third edition 2022-06 Cleanrooms and associated controlled environments - Part 8: Assessment of air cleanliness by chemical concentration (ACC) Salles propres et environnements maitrisés apparentés - Partie 8: Evaluation de la propreté chimique de I'air Reference number ISO 14644-8:2022(E) @IS02022 IS0 14644-8:2022(E) COPYRIGHTPROTECTED DOCUMENT IS02022 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 berequested fromeither Isoat the addressbelow or IsoO'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: copyright@iso.org Website: www.iso.org Published in Switzerland ii @ IS0 2022 - All rights reserved