Downloaded from https://www.everyspec.com MIL-STD-322B 20 March 1984 APPENDIX A ILLUSTRATIVE EXAMPLE OF THE APPLICATION OF THE OSTR PROCEDURE 10. GENERiL 10.1 Objective. To determine the 1% firing level with 99% confidence of an electric detonator, capacitor discharge using a capacitor of 4.7A F. 10.2 Test plan. An OSTR, NO = 79 TMP = .0944wds conducted. The stimu- lating voltage was varied seventy-nine units under test”and nine changes of I response were obtained as indicated in test data. 10.3 Analysis of test data. Test data were subjected to analysis assum- ing a Meibull distribution which is robust (insensitive to the form of the distribution). 10.4 Summary of test results.
99% Point Estimate Confidence Level Levels Percentage Points Volts LL UL .0944 .01 2.56 2.40 2.73 2.32 1.78 2.86 The values above with the formula !! were su sequently converted to energy in ergs in accordance E = 5CV where E = energy in ergs C =4.7~ F Volts 99% Percentage - Points Point Estimate Confidence Ergs Level Limits LL UL .0944 .01 154.01 126.49 135.36. 175.14 74.46 192.?2 19