Downloaded from https://www.everyspec.com MIL-STD-322B 20 March 1984 Conditioning time shall be,a minimum of four hours up to a maximum of seventy- two hours for both temperatures. Functioning of the samples should be conducted without removal from the conditioning cabinet whe,never possible. When it is impossible to function the samples in the conditioning cabinet, precautions shall be taken to assure the temperature is maintained until the samples are tested. The number of samples which fail to function or to meet the output requirements, if any, shall be recorded in Figure 8 for each of the extreme temperatures. 5.1.6 Sensitivity to static electricity.
Twenty-four samples per each discharge path shall be tested between pair”s of lead wires.or pins of the sample in all combinations and between all the shorted lead wires or pins and the metallic case”of the sample (lead wires or pins shorted to each other’ external to the sample). For a 2-lead wire item, 48 samples are required; 3 leads, 96 samples. Testing shall be performed in a polarity mode for worst case on the sample with each discharge maintained for a 60 second period. The number of fires (if any) and no fires shall be recorded as indicated in Figure 8. 5.1.7 Jolt. Additional, equipment required shall consist of adapters into which the samples can be mounted.
Using the adapters, the 24 samples shall be tested in each of the three positions of the jolt arm in accordance with the Jolt Test procedures. After cycling, samples shall be examined for compliance with criteria for passing (4.1.7). \ 5.1.8 Twelve meter drop. The 25 samples shall be tested, five each in five different positions to simulate nose up, nose down, horizontal, 45° impact with nose up, and 45° impact with nose down. A fixture suitable for testing various detonators as shown in Figures 1 through 5 or a similar fixture shall’ be required for the test. Samples shall be examined, after test, for comPlia~~ce with criteria for passing (4.1.8). 5.1.9 Transportation vibration.
The 24 samples shall be tested, first in a vertical plane with the initiating end up, anclthen in a horizontal plane. The frequen~y’’shall be swept logari~hrnicdly from 5 to 5(X)and back to 5 Hz in 60 minutes. Accuracies and amplitudes at the various frequencies shall be in accordance with 5.1.1 of Test ”l19. The total test duration shall be 4 hours (2 hours per’ orientation). Upon completion of vibration, examine the samples for conformance with the safety criterion for passing. If satisfactory frori the safety viewpoint, all samples shall function when tested for reliability of functioning and output in accordance with 4.1.2. 5.1.10 Thermal shock.
Using equipment as described in Test 113, the samPles are alternately conditioned for four hours each between -65*F and 160°F (-5~0C and 72”C). ,After three temperature reversals (24 hours), samples are removed and then examined and tested for functioning. The decision on safety shall be based on inspection and engineering judgment. If satisfactory from safety viewpoint, all s~ples must function when tested for reliability and output as outlined in 4.1.2. The input used for the test shall be the design “all-fire” stimulus (volt, current, or capacitor discharge). ,. 7