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1、BRITISH STANDARD BS EN 60512-11-7: 1997 IEC 512-11-7: 1996 Electromechanical components for electronic equipment Basic testing procedures and measuring methods Part 11: Climatic tests Section 7: Test 11g. Flowing mixed gas corrosion test The European Standard EN 60512-11-7:1996 has the status of a B
2、ritish Standard ICS 31.220.01 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 02:26:14 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 60512-11-7:1997 This British Standard, having been prepared under the direction of the Electrotechnical Sector Board, was published under the authority of th
3、e Standards Board and comes into effect on 15 April 1997 BSI 12-1998 The following BSI references relate to the work on this standard: Committee reference EPL/48/2 Announced in BSI Update February 1997 ISBN 0 580 27313 X Committees responsible for this British Standard The preparation of this Britis
4、h Standard was entrusted by Technical Committee EPL/48, Electromechanical components for electronic equipment, to Subcommittee EPL/48/2, Connectors for electronic equipment, upon which the following bodies were represented: Association of Manufacturers Allied to the Electrical and Electronic Industr
5、y (BEAMA Ltd.) British Telecommunications plc BSI Quality Assurance Federation of the Electronics Industry Ministry of Defence Premises Cabling Association Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 02:26:14 GMT+00:00 2006, Uncontr
6、olled Copy, (c) BSI BS EN 60512-11-7:1997 BSI 12-1998i Contents Page Committees responsibleInside front cover National forewordii Foreword2 Text of EN 60512-11-73 List of referencesInside back cover Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 02:26:14 GMT+00:00 2006, Uncontrolled Copy, (c
7、) BSI BS EN 60512-11-7:1997 ii BSI 12-1998 National foreword This Section of BS EN 60512 has been prepared by Subcommittee EPL/48/2, and is the English language version of EN 60512-11-7:1996 Electromechanical components for electronic equipment Basic testing procedures and measuring methods Part 11:
8、 Climatic tests Section 7: Test 11g: Flowing mixed gas corrosion test, published by the European Committee for Electrotechnical Standardization (CENELEC). It is identical with IEC 512-11-7:1996, published by the International Electrotechnical Commission (IEC). A British Standard does not purport to
9、include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Cross-reference Publication referred toCorresponding British Standard EN 60068-2
10、-60:1996BS EN 60068 Environmental testing (IEC 68-2-60:1995)BS EN 60068-2-60 Test Ke. Flowing mixed gas corrosion test Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 6, an inside back cover and a back cover. This standard
11、has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 02:26:14 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPI
12、SCHE NORM EN 60512-11-7 March 1996 ICS 31.220.00 Descriptors: Electromechanical components, testing procedures, corrosion test English version Electromechanical components for electronic equipment Basic testing procedures and measuring methods Part 11: Climatic tests Section 7: Test 11g: Flowing mix
13、ed gas corrosion test (IEC 512-11-7:1996) Composants lectromcaniques pour quipements lectroniques Procdures dessai de base et mthodes de mesure Partie 11: Essais climatiques Section 7: Essai 11g: Essai de corrosion dans un flux de mlange de gaz (CEI 512-11-7:1996) Elektrisch-mechanische Bauelemente
14、fr elektronische Einrichtungen Me- und Prfverfahren Teil 11: Klimatische Prfungen Hauptabschnitt 7: Prfung 11g: Korrosionsprfung mit strmendem Mischgas (IEC 512-11-7:1996) This European Standard was approved by CENELEC on 1996-03-05. CENELEC members are bound to comply with the CEN/CENELEC Internal
15、Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member
16、. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC m
17、embers are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit
18、 Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1996 Copyright reserved to CENELEC members Ref. No. EN 60512-11-7:1996 E Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 02:26:14 GMT+00:00 2006
19、, Uncontrolled Copy, (c) BSI EN 60512-11-7:1996 2 BSI 12-1998 Foreword The text of document 48B/391/FDIS, as prepared by SC 48B, Connectors, of IEC TC 48, Electromechanical components and mechanical structures for electronic equipment, was submitted to the IEC-CENELEC parallel vote and was approved
20、by CENELEC as EN 60512-11-7 on 1996-03-05. The following dates were fixed: Annexes designated “normative” are part of the body of the standard. In this standard, annex ZA is normative. Annex ZA has been added by CENELEC. Contents Page 1Scope and object3 1.1Normative references3 2Preparation of the s
21、pecimen3 2.1Mechanical preparation3 2.2Preconditioning3 3Test method3 3.1Initial measurements3 3.2Test severities3 3.3Final measurements3 4Details to be specified4 Annex ZA (normative) Normative references to international publications with their corresponding European publications5 Table 14 latest
22、date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement(dop) 1996-12-01 latest date by which the national standards conflicting with the EN have to be withdrawn(dow) 1996-12-01 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov
23、 11 02:26:14 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 60512-11-7:1996 BSI 12-19983 1 Scope and object This section of IEC 512-11 defines a standard test method to assess the effects of a controlled atmosphere polluted by gases at very low concentration on electrical contacts or connections. 1.1
24、 Normatives references The following normative documents contain provisions which, through reference in this text, constitute provisions of this section of IEC 512-11. At the time of publication, the editions indicated were valid. All normative documents are subject to revision, and parties to agree
25、ments based on this section of IEC 512-11 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. IEC 68-2-60:1995, Environmental testing Part
26、2: Tests Test Ke: Flowing mixed gas corrosion test. IEC 512-2:1985, Electromechanical components for electronic equipment; basic testing procedures and measuring methods Part 2: General examination, electrical continuity and contact resistance tests, insulation tests and voltage stress tests. IEC 51
27、2-7:1993, Electromechanical components for electronic equipment; basic testing procedures and measuring methods Part 7: Mechanical operating tests and sealing tests. 2 Preparation of the specimen 2.1 Mechanical preparation The specimen, equipped with normal accessories, shall be mounted and wired in
28、 accordance with the detail specification. When required by the detail specification, the specimen shall be operated the number of times specified, prior to test. For each test carried out, the detail specification shall specify the condition of the component, for example, mated or unmated. 2.2 Prec
29、onditioning Preconditioning shall be carried out in accordance with the requirements of the detail specification. 3 Test method 3.1 Initial measurements When required by the detail specification, the specified initial measurements shall be made under standard atmospheric conditions, immediately afte
30、r preconditioning. 3.2 Test severities The test severity is defined by: the test method, chosen from Table 1; this table is in accordance with test Ke: Flowing mixed gas corrosion test, of IEC 68-2-60 (second edition); the test duration; preferred values are 4, 7, 10, 14 and 21 days. The test method
31、 and duration shall be specified in the detail specification. Guides for the selection of test methods and test duration, and descriptions of test apparatus are given in IEC 68-2-60. During the test, specimens are not electrically loaded. Care should be taken on any possible poisonous effect of gase
32、s used. 3.3 Final measurements The specimen shall then be subjected to the following tests and shall meet the requirements specified by the detail specification: a) contact resistance tests (tests 2 of IEC 512-2), as applicable; b) mechanical operating tests (test 13 of IEC 512-7), as applicable; c)
33、 visual examination (test 1a of IEC 512-2). Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 02:26:14 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 60512-11-7:1996 4 BSI 12-1998 Table 1 4 Detalls to be specified When this test is required by the detail specification, the following details shal
34、l be specified: a) method of mounting and wiring of the specimen; b) mated or unmated condition; c) preconditioning time and number of operations; d) method to be used; e) duration of test; f) initial measurements; g) contact resistance test to be used; h) mechanical operating test to be used; i) re
35、quirements for the final measurements; j) any deviation from the standard test method. ParametersMethod 1Method 2Method 3Method 4 H2S(109 vol/vol) 100 2010 5100 2010 5 NO2(109 vol/vol) 200 50200 50200 50 Cl2(109 vol/vol) 10 520 510 5 SO2(109 vol/vol) 500 100200 20 Temperature C25 130 130 125 1 Relat
36、ive humidity %75 370 375 375 3 Volume changes per hour310310310310 Weight increase of copper coupons mg/dm2/day 1,02,00,31,01,22,21,22,4 Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 02:26:14 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 60512-11-7:1996 BSI 12-19985 Annex ZA (normative) Nor
37、mative references to international publications with their corresponding European publications This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are li
38、sted hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). NOT
39、EWhen an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. PublicationYearTitleEN/HDYear IEC 68-2-601995Environmental testing Part 2: Tests Test Ke: Flowing mixed gas corrosion test EN 60068-2-601996 IEC 512-21985Electromechanical co
40、mponents for electronic equipment basic testing procedures and measuring methods Part 2: General examination, electrical continuity and contact resistance tests, insulation tests and voltage stress tests IEC 512-71993Part 7: Mechanical operating tests and sealing tests Licensed Copy: sheffieldun she
41、ffieldun, na, Sat Nov 11 02:26:14 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 6 blank Licensed Copy: sheffieldun sheffieldun, na, Sat Nov 11 02:26:14 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 60512-11-7:1997 BSI 12-1998 List of references See national foreword. Licensed Copy: sheffieldun sheff
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