MIL-STD-690D
w/ CHANGE 1
APPENDIX A
* TABLE A-VI. True failure rates for C = 4 (level M).
Probability of qualification |
True failure rates at confidence level: |
|||||||||||
99% |
95% |
90% |
80% |
70% |
60% |
50% |
40% |
30% |
20% |
10% |
5% |
|
.99 .95 .90 .80 |
.111 .170 .210 .266 |
.140 .215 .266 .337 |
.160 .246 .304 .386 |
.191 .293 .362 .460 |
.218 .334 .413 .524 |
.245 .376 .465 .590 |
.274 .422 .521 .661 |
.309 .475 .587 .745 |
.353 .542 .670 .850 |
.415 .638 .788 1.000 |
.527 .810 1.000 1.270 |
.650 1.000 1.235 1.568 |
.70 .60 .50 .40 |
.313 .358 .403 .452 |
.397 .453 .510 .572 |
.455 .519 .584 .655 |
.541 .617 .695 .779 |
.617 .704 .793 .889 |
.694 .792 .892 1.000 |
.778 .888 1.000 1.121 |
.876 1.000 1.126 1.263 |
1.000 1.141 1.286 1.441 |
1.176 1.343 1.512 1.695 |
1.494 1.705 1.920 2.153 |
1.844 2.105 2.371 2.658 |
.30 .20 .10 .05 .01 |
.508 .580 .689 .790 1.000 |
.643 .734 .873 1.000 1.266 |
.737 .841 1.000 1.145 1.450 |
.876 1.000 1.182 1.362 1.725 |
1.000 1.141 1.357 1.554 1.968 |
1.125 1.284 1.526 1.748 2.214 |
1.261 1.439 1.711 1.960 2.482 |
1.420 1.621 1.927 2.208 2.795 |
1.621 1.850 2.200 2.520 3.191 |
1.907 2.176 2.588 2.964 3.753 |
2.421 2.763 3.286 3.764 4.766 |
2.990 3.412 4.057 4.647 5.884 |
NOTE: For other than M (1.0%) failure rate level, divide above values by 10 for P (0.1%) level, by 100 for R or U (0.01%) level, by 1,000 for S or V (0.001%) level, or by 10,000 for T (0.0001%) level (see 4.1a).
* TABLE A-VII. True failure rates for C = 5 (level M).
Probability of qualification |
True failure rates at confidence level: |
|||||||||||
99% |
95% |
90% |
80% |
70% |
60% |
50% |
40% |
30% |
20% |
10% |
5% |
|
.99 .95 .90 .80 |
.137 .200 .241 .298 |
.170 .249 .300 .372 |
.193 .282 .340 .421 |
.226 .330 .399 .494 |
.255 .373 .450 .557 |
.284 .415 .501 .620 |
.315 .461 .556 .688 |
.351 .513 .619 .767 |
.396 .578 .698 .864 |
.458 .669 .807 1.000 |
.567 .829 1.000 1.238 |
.684 1.000 1.206 1.494 |
.70 .60 .50 .40 |
.345 .389 .433 .481 |
.430 .485 .540 .599 |
.487 .549 .611 .679 |
.571 .644 .717 .796 |
.645 .727 .809 .898 |
.718 .809 .901 1.000 |
.797 .898 1.000 1.110 |
.887 1.000 1.114 1.236 |
1.000 1.127 1.255 1.393 |
1.157 1.304 1.453 1.612 |
1.433 1.615 1.799 1.997 |
1.729 1.949 2.170 2.408 |
.30 .20 .10 .05 .01 |
.535 .604 .708 .802 1.000 |
.667 .753 .883 1.000 1.247 |
.756 .853 1.000 1.132 1.412 |
.886 1.000 1.173 1.328 1.656 |
1.000 1.128 1.324 1.499 1.869 |
1.113 1.257 1.474 1.669 2.081 |
1.236 1.394 1.635 1.852 2.309 |
1.376 1.553 1.822 2.063 2.572 |
1.551 1.750 2.053 2.324 2.899 |
1.795 2.026 2.376 2.690 3.355 |
2.223 2.509 2.942 3.332 4.155 |
2.682 3.026 3.550 4.019 5.012 |
NOTE: For other than M (1.0%) failure rate level, divide above values by 10 for P (0.1%) level, by 100 for R or U (0.01%) level, by 1,000 for S or V (0.001%) level, or by 10,000 for T (0.0001%) level (see 4.1a).
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