ISO INTERNATIONAL STANDARD 8980-3 Fourth edition 2022-06 Ophthalmic optics Uncut finished spectacle lenses Part 3: Transmittance specifications and test methods Optique ophtalmique - Verres de lunettes finis non détourés - Partie 3: Specifications relatives au facteur de transmission et méthodes d'essai Reference number IS0 8980-3:2022(E) @ISO2022 IS0 8980-3:2022(E) COPYRIGHTPROTECTEDDOCUMENT IS02022 All rights reserved.Unless otherwise specified,or required in thecontext of itsimplementation,nopart 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 ISoO's member body in the country of the requester. ISO copyright office CP 401 · Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +4122 749 0111 Email: [email protected] Website: www.iso.org Published in Switzerland ii @IS0 2022 - All rights reserved