IEC 60068-2-60-2015 Environmental testing - Part 2-60 Tests - Test Ke Flowing mixed gas corrosion test《环境试验 第2-60部分 试验 试验Ke 流动混合气体腐蚀试验》.pdf

1、 IEC 60068-2-60 Edition 3.0 2015-06 REDLINE VERSION Environmental testing Part 2-60: Tests Test Ke: Flowing mixed gas corrosion test IEC 60068-2-60:2015-06 RLV(en) colour inside THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2015 IEC, Geneva, Switzerland All rights reserved. Unless otherwise spec

2、ified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either IEC or IECs member National Committee in the country of the requester. If you have any questions abo

3、ut IEC copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or your local IEC member National Committee for further information. IEC Central Office Tel.: +41 22 919 02 11 3, rue de Varemb Fax: +41 22 919 03 00 CH-1211 Geneva 20 infoiec.

4、ch Switzerland www.iec.ch 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

5、 is kept under constant review by the IEC. Please make sure that you have the latest edition, a corrigenda or an amendment might have been published. IEC Catalogue - webstore.iec.ch/catalogue The stand-alone application for consulting the entire bibliographical information on IEC International Stand

6、ards, Technical Specifications, Technical Reports and other documents. Available for PC, Mac OS, Android Tablets and iPad. IEC publications search - www.iec.ch/searchpub The advanced search enables to find IEC publications by a variety of criteria (reference number, text, technical committee,). It a

7、lso gives information on projects, replaced and withdrawn publications. IEC Just Published - webstore.iec.ch/justpublished Stay up to date on all new IEC publications. Just Published details all new publications released. Available online and also once a month by email. Electropedia - www.electroped

8、ia.org The worlds leading online dictionary of electronic and electrical terms containing more than 30 000 terms and definitions in English and French, with equivalent terms in 15 additional languages. Also known as the International Electrotechnical Vocabulary (IEV) online. IEC Glossary - std.iec.c

9、h/glossary More than 60 000 electrotechnical terminology entries in English and French extracted from the Terms and Definitions clause of IEC publications issued since 2002. Some entries have been collected from earlier publications of IEC TC 37, 77, 86 and CISPR. IEC Customer Service Centre - webst

10、ore.iec.ch/csc If you wish to give us your feedback on this publication or need further assistance, please contact the Customer Service Centre: csciec.ch. IEC 60068-2-60 Edition 3.0 2015-06 REDLINE VERSION Environmental testing Part 2-60: Tests Test Ke: Flowing mixed gas corrosion test INTERNATIONAL

11、 ELECTROTECHNICAL COMMISSION ICS 19.040 ISBN 978-2-8322-2763-3 Registered trademark of the International Electrotechnical Commission Warning! Make sure that you obtained this publication from an authorized distributor. colour inside 2 IEC 60068-2-60:2015 RLV IEC 2015 CONTENTS FOREWORD . 3 1 General

12、 1 Scope 5 2 Normative references 5 3 Test apparatus 5 4 Severities 6 5 Preconditioning 7 6 Initial measurements . 7 7 Testing 7 7.1 General . 7 7.2 Test specimens . 7 7.3 Corrosivity monitoring materials 7 7.4 Testing procedure . 8 8 Recovery . 9 9 Final measurements 10 10 Information to be given

13、in the relevant specification . 10 11 Information to be given in the test report 10 Annex A (normative) Corrosion monitoring copper coupons . 11 A.1 General . 11 A.2 Nature and dimension . 11 A.3 Cleaning procedure . 11 Annex B (informative) Description of test apparatus . 12 B.1 General . 12 B.2 Cl

14、imatic system . 15 B.3 Test enclosure 15 B.4 Gas delivery system 16 B.5 Analysing system 17 B.5.1 Temperature and humidity . 17 B.5.2 Gases 17 B.6 Other corrosion monitoring methods . 18 B.6.1 Weight Mass increase 18 B.6.2 Surface analysis of monitoring coupons . 18 B.6.3 Visual examination 18 B.7 C

15、alibration of the chamber 18 Annex C (informative) Guide to the selection of methods and test duration 19 C.1 Introduction Introductory remarks 19 C.2 Function of corrosive gases used in the tests 19 C.3 Use of the different test methods 19 Bibliography 21 Figure B.1 Example of test apparatus 13 Tab

16、le 1 Test conditions 6 IEC 60068-2-60:2015 RLV IEC 2015 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ ENVIRONMENTAL TESTING Part 2-60: Tests Test Ke: Flowing mixed gas corrosion test FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization compr

17、ising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international 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 Stand

18、ards, 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 may participate in this prepa

19、ratory work. International, governmental and non- governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organi

20、zations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form o

21、f 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 misinterpretatio

22、n by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regio

23、nal publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out b

24、y 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 members of its technical committees and IEC National Committees f

25、or any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) 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 No

26、rmative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held res

27、ponsible for identifying any or all such patent rights. DISCLAIMER This Redline version is not an official IEC Standard and is intended only to provide the user with an indication of what changes have been made to the previous version. Only the current version of the standard is to be considered the

28、 official document. This Redline version provides you with a quick and easy way to compare all the changes between this standard and its previous edition. A vertical bar appears in the margin wherever a change has been made. Additions and deletions are displayed in red, with deletions being struck t

29、hrough. 4 IEC 60068-2-60:2015 RLV IEC 2015 International Standard IEC 60068-2-60 has been prepared by IEC technical committee 104: Environmental conditions, classification and methods of test. This third edition cancels and replaces the second edition, published in 1995, and constitutes a technical

30、revision. This edition includes the following significant technical changes with respect to the previous edition: updated IEC format; updated normative references list; addition of information of the working volume; revision of the test procedure; revision of the figures in Annex B. The text of this

31、 standard is based on the following documents: FDIS Report on voting 104/655/FDIS 104/656/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. This publication has been drafted in accordance with the ISO/IEC Directive

32、s, Part 2. A list of all parts in the IEC 60068 series, published under the general title Environmental testing, can be found on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under “http:/

33、webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. IMPORTANT The “colour inside” logo on the cover page of this publication indicates that it contains colours which are considered

34、to be useful for the correct understanding of its contents. Users should therefore print this publication using a colour printer. IEC 60068-2-60:2015 RLV IEC 2015 5 ENVIRONMENTAL TESTING Part 2-60: Tests Test Ke: Flowing mixed gas corrosion test 1 General Scope This part of IEC 60068-2 determines th

35、e corrosive influence of operating and storage indoor environments on electrotechnical products components, equipment and materials, particularly contacts and connections, considered separately, integrated into a subassembly or assembled as a complete equipment. It provides test methods giving infor

36、mation, on a comparative basis, to aid the selection of materials, choice of production processes and component design, with regard to corrosion resistance. A guide to the selection of methods and test duration is provided in Annex C. 2 Normative references The following documents, in whole or in pa

37、rt, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. 60512-2: 1985, Electromechanical components for e

38、lectronic equipment; basic testing procedures and measuring methods Part 2: General examination, Electrical continuity and contact resistance tests, Insulation tests and voltage stress tests IEC 60512-2-1, Connectors for electronic equipment Tests and measurements Part 2-1: Electrical continuity and

39、 contact resistance tests Test 2a: Contact resistance Millivolt level resistance method IEC 60512-3-1, Connectors for electronic equipment Tests and measurements Part 3-1: Insulation tests Test 3a: Insulation resistance ISO 431:1981, Copper refinery shapes 3 Test apparatus The test apparatus consist

40、s of a climatic system, test enclosure, gas delivery system and means for measuring gas concentration. Details of design and construction are optional but shall be such that the conditions specified for each method are fulfilled throughout the working volume and shall comply with the following requi

41、rements: water droplets or aerosols shall not be injected into the test enclosure; air and water used shall be sufficiently clean in order not to affect performance of the test; the test atmosphere shall flow through the enclosure in such a manner as to ensure uniform test conditions within the work

42、ing volume; the sampling point for gas analysis shall be in the working volume of the test enclosure; the exhaust gases shall be treated in accordance with the relevant regulatory stipulations; 6 IEC 60068-2-60:2015 RLV IEC 2015 the wet bulb pod shall be placed in the test chamber in such a manner n

43、ot to exceed 0,1 % of the cross-section of the test chamber. Because of the strong synergistic effect and the so called “memory effect” (i.e., it is difficult to fully remove the chlorine compounds from the chamber, tubes, etc.), it is recommended that enclosures and tubing used for tests that incor

44、porate chlorine only be used for chlorine tests. The working volume is the volume within which the individual corrosion (weight mass increase of copper coupons expressed in mg/( dm 2 day) according to Annex A) at each location differs by a maximum of 15 % from the average corrosion of all coupons wi

45、thin the working volume. 4 Severities The test severity shall be given in the relevant specification. It is defined by the test method, chosen from Table 1, the test duration. Preferred durations, in days, are 4, 7, 10, 14 and 21. Four methods are defined. The different parameters for each method ar

46、e summarized in the following Table 1. A guidance for the use of each method is given in Clause C.3. Table 1 Test conditions Parameters Method 1 Method 2 Method 3 Method 4 H 2 S (10 9vol/vol)1)100 20 10 5 100 20 10 5 NO 2 (10 9vol/vol)2)200 50 200 50 200 20 Cl 2(10 9vol/vol)3)10 5 20 5 10 5 SO 2(10

47、9vol/vol) 4)500 100 200 20 Temperature (C) a25 1 30 1 30 1 25 1 RH (%) a75 3 70 3 75 3 75 3 Volume changes per hour Weight increase of copper coupons mg/(dm 2 day) according to annex A 3 10 1,0 2,0 3 10 0,3 1,0 3 10 1,2 2,2 3 10 1,2 2,4 Rate of ventilations per hour 3 to 10 3 to 10 3 to 10 3 to 10 M

48、ass increase of copper coupons mg/(dm 2 day) according to Annex A 1,0 to 2,0 0,3 to 1,3 1,2 to 2,2 1,2 to 2,4 1) H 2 S: 1 g/m 3 = 0,71mm 3/m 3 2) NO 2 : 1 g/m 3= 0,53 mm 3/m 3 (10 9vol/vol) = UNIT ( g/m 3 ) 3) Cl 2 : 1 g/m 3= 0,34 mm 3/m 34) SO 2 : 1 g/m 3= 0,38 mm 3/m 3NOTE Since the nature of the

49、corrosive attack is different for test Methods 1 to 4, neither their numbering nor the corresponding weight mass increase of copper coupons reflect their severity. aDifferent temperature and humidity values (e.g. 40 C and 80 %RH) may be used based upon mutual agreement between the interested parties. The mass increase may be different from the given values. IEC 60068-2-60:2015 RLV IEC 2015 7