ISO INTERNATIONAL STANDARD 8424 Third edition 2023-07 Raw optical glass Resistance to attack by agqueous acidic solutions Test method and classification Verre d'optique brut - Résistance a I'attaque par des solutions acides aqueuses - Méthode d'essai et classification Reference number IS0 8424:2023(E) ISO @IS02023 IS0 8424:2023(E) COPYRIGHT PROTECTED DOCUMENT IS02023 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, withoutpriorwrittenpermission.Permission can be requested from eitherIso at the addressbelow or Iso's member body in the country of the requester. ISO copyright office CP 401 · Ch. de Blandonnet 8 CH-1214Vernier,Geneva Phone: +41 22 749 01 11 Email: copyright@iso.org Website: www.iso.org PublishedinSwitzerland i @ IS0 2023 - All rights reserved