CENELEC
CLC/SR 104 |
Environmental conditions, classification and methods of test |
Project
| Reference | EN 60068-2-27:2009 |
|---|---|
| Title | Environmental testing - Part 2-27: Tests - Test Ea and guidance: Shock |
| Project Number | 20878 |
| Abstract/Scope | IEC 60068-2-27 provides a standard procedure for determining the ability of a specimen to withstand specified severities of non-repetitive or repetitive shocks. The purpose of this test is to reveal mechanical weakness and/or degradation in specified performances, or accumulated damage or degradation caused by shocks. In conjunction with the relevant specification, this may be used in some cases to determine the structural integrity of specimens or as a means of quality control. This test is primarily intended for unpackaged specimens and for items in their transport case when the latter may be considered to be part of the specimen. If an item is to be tested unpackaged, it is referred to as a test specimen. However, if the item is packaged, then the item itself is referred to as a product and the item and its packaging together are referred to as a test specimen. When used in conjunction with IEC 60068-2-47, this standard may be used for testing packaged products. This possibility was included in the 2005 version of IEC 60068-2-47 for the first time. This standard is written in terms of prescribed pulse shapes. Guidance for the selection and application of these pulses is given in Annex A and the characteristics of the different pulse shapes are discussed in Annex B. Wherever possible, the test severity and the shape of the shock pulse applied to the specimen should be such as to reproduce the effects of the actual transport or operational environment to which the specimen will be subjected, or to satisfy the design requirements if the object of the test is to assess structural integrity (see Clauses A.2 and A.4). For the purposes of this test, the specimen is always mounted to the fixture or the table of the shock testing machine during testing. The major changes with regard to the previous edition concern: - the merging of IEC 60068-2-29 into this edition of IEC 60068-2-27; Part 2-29 will be withdrawn as soon as this edition is published; - the introduction of soft packaged specimens as defined in the IEC ad hoc working group document agreed in Stockholm:2000. Has the status of a basic safety publication according to IEC Guide 104. |
| Status |
Published
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Status
| Current Stage code | 6060 |
|---|---|
| Current Stage code date | 2009-05-07 |
| Current Stage code deadline | 2010-02-01 |
| Deadline date for vote |
Legal
| Directive(s) | |
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| Mandate(s) | |
| Order Voucher |
Details
| IEC Technical Body | IEC/TC 104 |
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| Reference Document | IEC 60068-2-27:2008 (EQV) |
| ICS | 19.040 - Environmental testing |
| Keywords | Environmental testing; Shock test |
| Note | VR + GB complaint on delayed ratification presented at 134 BT meeting * Supersedes EN 60068-2-27:1993 & EN 60068-2-29:1993 |
| A-Deviation(s) | |
| Special National Condition(s) |
Environment
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Clause
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Categories - Aspects
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Product Life Cycle
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Information
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History
Implementation Dates
| date of Ratification (DOR) (1) | 2009-04-22 |
|---|---|
| date of Availability (DAV) (2) | 2009-05-07 |
| date of Announcement (DOA) (3) | 2009-08-01 |
| date of Publication (DOP) (4) | 2010-02-01 |
| date of Withdrawal (DOW) (5) | 2012-05-01 |
Relations
| Supersedes | EN 60068-2-27:1993 EN 60068-2-29:1993 |
|---|---|
| Superseded by | |
| Normative reference (6) | IEC Guide 104:1997 EN 60068-1:1994 EN 60068-2-47:2005 EN 60068-2-55:1993 EN 60721-3-1:1997 EN 60721-3-5:1997 |
(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved
(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat
(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level
(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement
(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn
(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.
