ISO/CIE INTERNATIONAL STANDARD 17166 First edition 2019-05 Erythema reference action spectrum and standard erythema dose Spectre d'action érythémale de reference et dose érythémale normalisée Reference number IS0/CIE17166:2019(E) cie @IS0/CIE2019 IS0/CIE 17166:2019(E) COPYRIGHTPROTECTEDDOCUMENT IS0/CIE2019 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying,or posting below orIso'smemberbody inthecountry oftherequester. ISO copyright office CIE Central Bureau CP 401 : Ch. de Blandonnet 8 BabenbergerstraSe 9/9A CH-1214 Vernier, Geneva A-1010 Vienna, Austria Phone: +4122 749 0111 Phone: +43 1 714 3187 Fax: +41 22 749 09 47 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 2019 -All rights reserved IS0/CIE 17166:2019(E) Contents Page Foreword ..iv Introduction. 1 Scope.. 2 Normative references 3 Terms and definitions 4 Concept of erythemal irradiance and dose .3 4.1 Erythemal irradiance. .3 4.2 Erythema spectral weighting function 4.3 Standard erythema dose. .4 Bibliography .5 @ IS0/CIE 2019 - All rights reserved iii