IEC IEC60793-1-60 Edition 1.02017-02 INTERNATIONAL STANDARD NORME INTERNATIONALE colour inside Optical fibres - Part 1-60o: Measurement methods and test procedures - Beat length Fibres optiques- Partie 1-6o: Methodes de mesure et procedures d'essai- Longueur de battement IEC 60793-1-60:2017-02(en-fr) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright@2017IEC,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 copyright or have an enquiry about obtaining additional rights to this publication, piease contact the address below or your local IEC member National Committee for further information. Droits de reproduction reserves. Sauf indication contraire, aucune partie de cette publication ne peut etre reproduite 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 écrit 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 desirez obtenir des droits supplementaires sur cette publication, utilisez les coordonnees ci-apres ou contactez le Comite national de 'lEC 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 the IEC 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 IEC online collection - oc.iec.ch The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the varietyof criteria (referencenumber,text,technical publications previews. With a subscription you will always have committee, ...). It also gives information on projects, replaced access to up to date content tailored to your needs. and withdrawn publications. Electropedia-www.electropedia.org IEC Just Published - webstore.iec.ch/justpublished The world's leading online dictionary on electrotechnology, Stay up to date on all new IEC publications. Just Published containing more than 22 000 terminological entries in English details all new publications released. Available online and once and French, with equivalent terms in 18 additional languages. a month by email. Also known as the International Electrotechnical Vocabulary (IEV) online. IECCustomerServiceCentre-webstore.iec.ch/csc If you wish to give us your feedback on this publication or 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 elabore et publie des Normes internationales pour tout ce qui a trait a I'électricite, 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'edition la plus recente, un corrigendum ou amendement peut avoir éte publie Recherche depublications IEC Decouvrez notre puissant moteur de recherche et consultez webstore.iec.ch/advsearchform gratuitement tous les apercus des publications. Avec un La recherche avancee permet de trouver des publications IEC abonnement, vous aurez toujours acces a un contenu a jour en utilisant differents criteres (numero de reference, texte, adapteavos besoins. comite d'etudes, ...). Elle donne aussi des informations sur les projets et les publications remplacees ou retirees. Electroped