BS EN 61124:2012
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Reliability testing. Compliance tests for constant failure rate and constant failure intensity
Hardcopy , PDF
04-13-2023
English
07-31-2013
Important note : All end users must be registered with an Account prior to user licenses being assigned.| Committee |
DS/1
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| DevelopmentNote |
Supersedes BS IEC 61124 & 04/100416 DC. (02/2008)
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| DocumentType |
Standard
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| Pages |
126
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| PublisherName |
British Standards Institution
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| Status |
Superseded
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| SupersededBy | |
| Supersedes |
This International Standard gives a number of optimized test plans, the corresponding operating characteristic curves and expected test times. In addition the algorithms for designing test plans using a spreadsheet program are also given, together with guidance on how to choose test plans.
This standard specifies procedures to test whether an observed value of
failure rate,
failure intensity,
mean time to failure (MTTF),
mean operating time between failures (MTBF),
conforms to a given requirement.
It is assumed, except where otherwise stated, that during the accumulated test time, the times to failure or the operating times between failures are independent and identically exponentially distributed. This assumption implies that the failure rate or failure intensity is constant.
Four types of test plans are described as follows:
truncated sequential tests;
time/failure terminated tests;
fixed calendar time terminated tests without replacement;
combined test plans.
This standard does not cover guidance on how to plan, perform, analyse and report a test. This information can be found in IEC 60300-3-5.
This standard does not describe test conditions. This information can be found in IEC 60605-2 and in IEC 60300-3-5.
| Standards | Relationship |
| UNE-EN 61124:2014 | Identical |
| NF EN 61124 : 2012 | Identical |
| SN EN 61124 : 2006 | Identical |
| DIN EN 61124:2013-01 | Identical |
| EN 61124:2012 | Identical |
| IEC 61124:2012 | Identical |
| NBN EN 61124 : 2012 | Identical |
| IEC 61124:2012/COR1:2013 | Identical |
| EN 62341-1-2:2009 | Identical |
| IEC 61123:1991 | Reliability testing - Compliance test plans for success ratio |
| IEC 60605-4:2001 | Equipment reliability testing - Part 4: Statistical procedures for exponential distribution - Point estimates, confidence intervals, prediction intervals and tolerance intervals |
| IEC 60605-6:2007 | Equipment reliability testing - Part 6: Tests for the validity and estimation of the constant failure rate and constant failure intensity |
| MIL-HDBK-781 Revision A:1996 | RELIABILITY TEST METHODS, PLANS, AND ENVIRONMENTS FOR ENGINEERING DEVELOPMENT, QUALIFICATION AND PRODUCTION |
| IEC 60605-2:1994 | Equipment reliability testing - Part 2: Design of test cycles |
| IEC 60300-3-5:2001 | Dependability management - Part 3-5: Application guide - Reliability test conditions and statistical test principles |
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