IEC IEC TR 61858-3 Edition 1.02020-12 TECHNICAL REPORT INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS29.080.30 ISBN 978-2-8322-9135-1 Warning! Make sure that you obtained this publication from an authorized distributor. ? Registered trademark of the International Electrotechnical Commission - 2 - IEC TR 61858-3:2020 @IEC 2020 FOREWORD .3 INTRODUCTION, 1 Scope ..6 Normative references 2 ..6 3 Terms and definitions .6 4 General information . 4.1 Purpose of evaluation . 4.2 Categories of evaluation .. Evaluation procedures ... 5 ..8 5.1 Procedure G - Proof of generic identical materials. 5.2 Procedure A - Without test . 5.3 Procedure B - Chemical compatibility test 5.4 Procedure C - Standard single-point thermal aging test. ..8 5.5 Procedure D - Full thermal aging.. .8 Els assessment. 6 .8 Bibliography 9 IEC TR 61858-3:2020 @IEC 2020 - 3 - 1 co-operation on all questions concerning standardization in the electrical and electronic fields. To 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 in the subject dealt with withthe IEC also participate inthis preparation.IEC collaborates closelywith the International Organizationfor Standardization (iso) in accordance with conditions determined by agreement between the two organizations. consensus of opinion on the relevant subjects since each technical committee has representation from all interested IECNationalCommittees. 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. any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter IEc itself does not provide any attestation of conformity. Independent certification bodies provide conformity 5) services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEc or its directors, employees, servants or agents including individual experts and other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and 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. Attention is drawn to the possibility that some of the elements of this IEc Publication may be the subject of patent 9) rights. IEC shall not be held responsible for identifying any or all such patent rights. IEC TR 61858-3 has been prepared by IEC technical committee 112: Evaluation and The text of this Technical Report is based on the following documents: Draft Report on voting 112/465/DTR 112/500A/RVDTR Full information on the voting for its approval can be found in the report on voting indicated in the above table. The language used for the development of this Technical Report is English.