BS IEC 60605-6:2007

What is BS IEC 60605-6 – Equipment reliability testing about?

BS IEC 60605-6 is the sixth part of the IEC 60605 series that discusses equipment reliability testing. The techniques given in BS IEC 60605-6 for testing constant failure rate or constant failure intensity assumptions are numerical and graphical procedures.

BS IEC 60605-6 specifies procedures to verify the assumption of a constant failure rate or constant failure intensity, as defined in IEC 60050(191), and to identify patterns in the failure rate or intensity. These procedures are applicable whenever it is necessary to verify such assumptions. This may be due to a requirement or for the purpose of assessing any variation with time of the failure rate or failure intensity.

Who is BS IEC 60605-6 – Equipment reliability testing for?

BS IEC 60605-6 on tests for the validity and estimation of the constant failure rate and constant failure intensity is useful for:

• Reliability engineers
• Quality control personnel
• Testing and inspection personnel

Why should you use BS IEC 60605-6 – Equipment reliability testing?

Equipment reliability tests are performed on products to identify their reliability under operational conditions over an estimated time. These tests are necessary to identify the performance and consistency of the performance of a product.

The methods specified in this standard help you:

• To test whether the times to failure of non-repaired items are exponentially distributed, i.e., the failure rate is constant
• To test whether the times between failures of the repaired item(s) have any time trend, i.e., the failure intensity does not exhibit an increasing or decreasing trend
• To construct graphs that allow the patterns in the failure rate or failure intensity to be displayed, with a view to verifying whether they can be assumed constant, to estimate their values or to identify the nature of any departure from constancy

Overall, BS IEC 60605-6 allows you to identify and estimate patterns, such as early failures and non-constant failure rates and intensities.

What’s changed since the last update?

BS IEC 60605-6:2007 replaces BS IEC 60605-6:1997 and constitutes a technical revision.

The major technical changes in BS IEC 60605-6:2007 with respect to BS IEC 60605-6:1997 concern the inclusion of corrected formulae for tests previously included in a corrigendum, and the addition of new methods for the analysis of multiple items.