BSI PD IEC/TR 60493-3:2017
$142.49
Guidelines for the statistical analysis of ageing test data – Minimum specimen numbers at different test conditions with given experimental data
| Published By | Publication Date | Number of Pages |
| BSI | 2017 | 26 |
This part of IEC 60493 clarifies how a statistical analysis can be done with a small number of samples.
This document will be useful when the accelerated test method is difficult to carry out, for example in cases where the dimensions of test specimens (including test devices) are very large in scale or the cost of test specimens is high. Testing is facilitated by enabling users to reduce the number of test specimens.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 6 | CONTENTS |
| 7 | FOREWORD |
| 9 | INTRODUCTION |
| 10 | 1 Scope 2 Normative references 3 Terms, definitions, symbols and conventions 3.1 Terms and definitions 3.2 Symbols |
| 11 | 3.3 Conventions 4 Assumptions |
| 12 | 5 General considerations |
| 13 | Figures Figure 1 – Ageing time versus survival ratio Figure 2 – Arrhenius plot of failure time or scatter |
| 14 | 6 Probability calculation based on normal distributions 6.1 General 6.2 Calculations Figure 3 – Temperature dependence of σ/t |
| 16 | 6.3 Estimated life at 90 °C (temperature difference is set to be 40 °C) 6.3.1 Ideal case with σ = 0,05, 0,1, 0,2, 0,3 |
| 17 | 6.3.2 Test sample numbers of 20, 10, 5, 3 with σ = 0,05 Figure 4 – Estimated life at 90 °C for the ideal case |
| 18 | 6.3.3 Test sample numbers of 20, 10, 5, 3 with σ = 0,3 Figure 5 – Test sample numbers of 20, 10, 5, 3 with σ = 0,05 |
| 19 | 6.4 Estimated life at 50 °C (temperature difference is set to be 80 °C) 6.4.1 Ideal case with σ = 0,05, 0,1, 0,2, 0,3 Figure 6 – Test sample numbers of 20, 10, 5, 3 with σ = 0,3 |
| 20 | 6.4.2 Test sample numbers of 20, 10, 5, 3 with σ = 0,05 Figure 7 – Estimated life at 50 °C for the ideal case |
| 21 | 6.4.3 Test sample numbers of 20, 10, 5, 3 with σ = 0,3 Figure 8 – Test sample numbers of 20, 10, 5, 3 with σ = 0,05 |
