IEC IEC 60793-1-43 Edition 2.02015-03 INTERNATIONAL STANDARD NORME INTERNATIONALE colour nside Opticalfibres Part 1-43: Measurement methods and test procedures - Numerical aperture Measurement Fibres optiques Partie 1-43: Methodes de mesure et procedures d'essai-Mesure de I'ouverture numerique IEC 60793-1-43:2015-03(en-fr) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright2015IEC,Geneva,Switzerland or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC your local IEC member National Committee for further information. ni utilisee sous quelque forme que ce soit et par aucun procede, electronique ou mecanique, y compris la photocopie et les microfilms, sans I'accord ecrit de I'IEC ou du Comite national de I'IEC du pays du demandeur. Si vous avez des questions sur le copyright de I'lEC ou si vous désirez obtenir des droits supplementaires sur cette publication, utilisez les coordonnees ci-apres ou contactez le Comite national de 'IEC de votre pays de residence. IEC Central Office Tel.: +41 22 919 02 11 3, rue de Varembe [email protected] CH-1211 Geneva 20 www.iec.ch Switzerland About theIEC The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes International Standards for all electrical, electronic and related technologies. About IEC publications The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the latest edition, a corrigendum or an amendment might have been published. IEC publications search-webstore.iec.ch/advsearchform Electropedia -www.electropedia.org The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology, varietyof criteria (referencenumber,text, technical containing more than 22 000 terminological entries in English committee,...). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages. Also known as the International Electrotechnical Vocabulary and withdrawn publications. (IEV) online. IEc Just Published - webstore.iec.ch/justpublished Stay up to date on all new IEC publications. Just Published IEc Glossary - std.iec.ch/glossary 67 000 electrotechnical terminology entries in English and details all new publications released. Available online and once a month by email. French extracted from the Terms and Definitions clause of IEC publications issued since 2002.Some entries have been IECCustomerServiceCentre-webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and If you wish to give us your feedback on this publication or CISPR. need further assistance, please contact the Customer Service Centre: [email protected] A propos de I'IEc La Commission Electrotechnique Internationale (lEC) est la premiere organisation mondiale qui élabore et publie des Normes internationales pour tout ce qui a trait a I'electricite, a i'electronique et aux technologies apparentees. A propos des publications IEc Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possedez I'édition la plus recente, un corrigendum ou amendement peut avoir ete publie. Recherche de publications IEC - Electropedia-www.electropedia.org webstore.iec.ch/advsearchform Le premier dictionnaire d'électrotechnologie en ligne au La recherche avanceepermetde trouver despublications IEC monde,avec plus de 22 000 articles terminologiques en en utilisant differents criteres (numero de reference, texte, anglais et en frangais, ainsi que les termes equivalents dans 16 langues additionnelles. comite d'etudes,...). Elle donne aussi des informations sur les Egalement appele Vocabulaire Eiectrotechnique International (iEV) en ligne. projets et les publications remplacees ou retirees. IEC Just Published -webstore.iec.ch/jus