ISO/CIE INTERNATIONAL STANDARD 11664-2 First edition 2022-08 Colorimetry - Part 2: CIE standard illuminants Colorimétrie - Partie 2: Illuminants CIE normalises Reference number ISO/CIE11664-2:2022(E) cie ISO @ IS0/CIE 2022 IS0/CIE 11664-2:2022(E) COPYRIGHT PROTECTED DOCUMENT @ ISO/CIE2022 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 orIso'smemberbodyinthecountryoftherequester ISO copyright office CIE Central Bureau CP 401 : Ch. de Blandonnet 8 BabenbergerstrafBe 9/9A· A-1010 Vienna CH-1214 Vernier, Geneva Phone: +41 22 749 01 11 Phone:+431714 3187 Fax: +41 22 749 09 47 Email: [email protected] Email: [email protected] Website: www.iso.org Website: www.cie.co.at Published in Switzerland ii @IS0/CIE 2022-All rights reserved