1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 60068-2-40:2000 IEC
2、 60068-2-40:1976 The European Standard EN 60068-2-40:1999 has the status of a British Standard ICS 19.040 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Environmental testing Part 2: Tests Test Z/AM: Combined cold/low air pressure testsThis British Standard, having been prepa
3、red under the direction of the Electrotechnical Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 April 2000 BSI 04-2000 ISBN 0 580 34051 1 BS EN 60068-2-40:2000 Amendments issued since publication Amd. No. Date Comments National foreword This
4、 British Standard is the official English language version of EN 60068-2-40:1999. It is identical with IEC 60068-2-40:1976 plus amendment 1:1983. It supersedes BS 2011-2.1Z/AM:1977 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee GEL/104, Environmental
5、 conditions, classification and testing, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international
6、and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. From 1 January 1997, all IEC publications have the number 60000 added to the old number. For instance, IEC 27-1 has been renumbered as IEC 60027
7、-1. For a period of time during the change over from one numbering system to the other, publications may contain identifiers from both systems. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international p
8、ublications with their corresponding European publications. The British Standards which implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the
9、 BSI Standards Electronic Catalogue. A British Standard does not purport to 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. Summ
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