IEC IEC 61300-2-21 Edition 2.02009-12 INTERNATIONAL STANDARD NORME INTERNATIONALE Fibre optic interconnecting devices and passive components -Basic test andmeasurementprocedures Part 2-21: Tests - Composite temperature/humidity cyclic test Dispositifs d'interconnexion et composants passifs a fibres optigues - Methodesfondamentalesd'essaisetdemesures Partie 2-21: Essais - Essai cyclique composite de temperature et d'humidité INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE PRICE CODE M CODE PRIX ICS33.180.20 ISBN 978-2-88912-049-9 - 2 - 61300-2-21@IEC:2009 INTERNATIONALELECTROTECHNICALCOMMISSION FIBRE OPTICINTERCONNECTING DEVICESANDPASSIVECOMPONENTS BASICTESTANDMEASUREMENTPROCEDURES Part 2-21:Tests Composite temperature/humidity cyclic test FOREWORD The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising 1) all national electrotechnical committees (IEC National Committees). The object of IEC is to promote this end and in addition to other activities, IEC publishes International Standards,Technical Specifications, Technical Reports Publicly Available Specifications (PAS) and Guides_(hereafter,referred to as "IEC Publication(s)").Their preparation is entrusted to technical committees; any IEC National Committee interested agreement between the two organizations. The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international interested IEC National Committees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEc cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. transparently to the maximum extent possible in their national and regional publications. Any divergence the latter. 5) IEc itself does not provide any attestation of conformity. Independent certification bodies provide conformity services carried out by independent certification bodies. All users should ensure that they have the latest edition of this publication. 6) 7) No liability shall attach to IEc or its directors, employees, servants or agents including individual experts and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication （6 Attention is drawn to the possibility that some of the elements of this IEc Publication may be the subject of International Standard IEC 61300-2-21 has been prepared by subcommittee 86B: Fibre optic interconnecting devices and passive components,of IECtechnical committee 86:Fibre optics. This bilingual version (2010-07) replaces the English version. This second edition cancels and replaces the first edition published in 1995. It constitutes a technical revision.The changes with respect to the previous edition are: to reconsider the whole parts of the standard; to describe the apparatus and procedure in greater details; todefinewithprecisionthe numberof 24cycles intheseverity - 3 - 61300-2-21@IEC:2009 The text of this standard is based on the following documents: FDIS Report on voting 86B/2924/FDIS 86B/2961/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. The French version of this standard has not been voted upon. This publication has been drafted in accordance with the ISO/lEC Directives, Part 2. A list of all the parts of IEC 6130o series, under the general title, Fibre optic interconnecting devices andpassive components -Basic testand measurement procedures,canbe found on the IEC website. The committee has decided that the content