ISO INTERNATIONAL STANDARD 17328 Second edition 2021-11 Optics and photonics Optical materials and components Test method for refractive index of infrared optical materials Optique et photonique - Matériaux et composants optiques - Méthode d'essai de I'indice de réfraction des matériaux optiques infrarouges Reference number ISO 17328:2021(E) ISO @IS02021 IS0 17328:2021(E) COPYRIGHT PROTECTED DOCUMENT @ IS0 2021 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: +4122 749 0111 Email: [email protected] Website: www.iso.org PublishedinSwitzerland i @ IS0 2021 - All rights reserved