PD ISO/TR 16194:2017

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and units
5 Concepts of reliability and accelerated life testing
6 Failure mechanism and mode
7 Strategy of conducting accelerated life testing
8 Design of accelerated life testing
9 End of test
10 Statistical analysis
11 Reliability characteristics from the test data
12 Test report
Annex A (informative) - Determining stress levels
        when stress is time-dependent
Annex B (informative) - Life-stress relationship models
Annex C (informative) - Verification of compromise
        Weibull slopes
Annex D (informative) - Calculation procedures for
        censored data
Annex E (informative) - Examples of using accelerated
        life testing in industrial applications
Annex F (informative) - Palmgren-Miner's rule
Annex G (informative) - ALT experimental results for
        pneumatic cylinder
Bibliography

Gives general procedures for assessing the reliability of pneumatic fluid power components using accelerated life testing and the method for reporting the results.

This document provides general procedures for assessing the reliability of pneumatic fluid power components using accelerated life testing and the method for reporting the results. These procedures apply to directional control valves, cylinders with piston rods, pressure regulators, and accessory devices – the same components covered by the ISO19973 series of standards.

This document does not provide specific procedures for accelerated life testing of components. Instead, it explains the variability among methods and provides guidelines for developing an accelerated test method.

The methods specified in this document apply to the first failure, without repairs.