BS IEC 60300-3.5 : 2001

FOREWORD
INTRODUCTION
Clause
1 Scope
2 Normative references
3 Definitions, symbols and abbreviations
   3.1 Terms and definitions
   3.2 Abbreviations
   3.3 Legends for figures
4 General considerations
   4.1 Introductory remarks and legal considerations
   4.2 Objectives of reliability testing
   4.3 Classification of reliability tests
        4.3.1 Classification according to general purpose
        4.3.2 Classification according to the test place
        4.3.3 Classification according to time of
               receiving the results
   4.4 Statistical test plans
   4.5 Test specification
   4.6 Utilization of the test result
5 Test categories related to general test purpose
   5.1 Compliance testing
        5.1.1 Terms used in reliability compliance
               testing
        5.1.2 Requirements for reliability compliance
               testing
        5.1.3 Testing for success/failure ratio
   5.2 Reliability estimation testing
   5.3 Reliability comparison testing
6 Test conditions
   6.1 General principles of selecting test conditions
   6.2 Pre-test conditions and corrective maintenance
   6.3 Specification of operating and environmental
        test conditions
        6.3.1 Operating conditions
        6.3.2 Environmental conditions
   6.4 Specification of maintenance conditions
        6.4.1 Preventive maintenance
        6.4.2 Corrective maintenance
7 Data collection and failure classification
   7.1 Monitoring of test item performance
        7.1.1 Functional parameters
        7.1.2 Measuring method
        7.1.3 Monitoring interval
   7.2 Failure types
        7.2.1 Classes of non-relevant failures
        7.2.2 Special classes of failure
   7.3 Failure analysis
   7.4 Relevant test time
8 Test data analysis
   8.1 Non-repaired items
   8.2 Repaired items
   8.3 Failure data structures (censoring)
   8.4 Failure models
        8.4.1 Statistical nature
        8.4.2 Failure rate
        8.4.3 Failure intensity
        8.4.4 Concluding remarks
9 Statistical tools and analysis procedure
   9.1 Description of tools
   9.2 Description of the relationship between tools
   9.3 Analysis procedure
   9.4 Final conclusions and possible action to be
        taken
        9.4.1 Acceptance
        9.4.2 Conditional acceptance
        9.4.3 Rejection
10 Reporting
   10.1 Test logs and data records
   10.2 Recording of test conditions and observations
   10.3 Failure reports
        10.3.1 From the test operator
        10.3.2 From the repair personnel
        10.3.3 From the failure analysis personnel
   10.4 Failure summary record
   10.5 Failed replacement items and spare part
        inventory (optional)
   10.6 Final report
Annex A (informative) Data screening
Annex B (informative) General examples
Annex C (informative) Relationship between the
         existing IEC 60605 series and the new
         statistical tools
Bibliography

Gives guidelines for the planning and performing of reliability tests and the use of statistical methods to analyse test data. It defines the tests related to repaired and non-repaired items together with tests for constant and non-constant failure intensity and constant and non-constant failure rate.