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|  MIL-I-60231B(OS)
4.5.3.5.1 Maximum no-fire stimulus. Fifty ignition elements (30 at 65 to 75 F, 10 at 65 to 70 F, and 10
at 195 to 200 F) from each lot shall be tested. Failure of any unit to comply with the requirements of 3.7.1
shall be cause for rejection of the lot.
4.5.3.5.2 All-fire stimulus. The 50 ignition elements tested in 4.5.3.5.1 shall be used for this test. Failure of
any unit to comply with 3.7.2 shall be cause for rejection of the lot.
4.5.3.5.3 Minimum all-fire stimulus. The remaining 50 conditioned ignition elements (30 at 65 to 75 F, 10
at 65 to 70 F, and 10 at 195 to 200 F) shall be used for this test.
4.6 Test methods and procedures. All tests shall be performed on units which have been visually and
dimensionally accepted. There shall be no dirt, oils, foreign matter, defective materials. Markings shall be
clear, legible, and correct.
4.6.1 Electrical.
4.6.1.1 Dielectric withstanding voltage. A dielectric withstanding voltage of 100 + 50 volts dc shall be
applied between the pin and body prior to the assembly of the bridgewire. In each test, the leakage current
shall be measured within an accuracy of 5 percent. The test shall be conducted in accordance with MIL-STD-
202, Method 301.
4.6.1.2 Bridge circuit resistance. The bridge circuit resistance of the bridge circuit shall be measured using
a test circuit which subjects the bridge circuit to a current of less than 50 milliamperes. The test shall be
conducted in accordance with MIL-STD-202, Method 303.
4.6.2 Environmental.
4.6.2.1 Leakage. The leak test shall be conducted using a leak detector of sufficient sensitivity to ascertain if
the ignition elements meet the leak rate requirement.
4.6.2.2 Vibration. The ignition elements shall be subjected to the test requirements of 3.5.2. The sample
shall be divided into three groups of four units each. The first group shall be tested with disc up, the second
group with disc down, and the third group with disc horizontal. If the ignition elements have successfully met
the requirements of the vibration test, they shall then be subjected to tests as outlined in 4.6.1.2 and 4.6.2.1.
The ignition elements shall be assembled into a 1-cubic-centimeter firing chamber and temperature
conditioned at 65 to 75 F in accordance with 4.6.4.4. After temperature conditioning, the ignition elements
shall be subjected to tests in the following order: (1) 4.6.4.1 and (2) 4.6.4.2.
4.6.3 Hydrostatic pressure. The test shall be conducted using a hydrostatic test apparatus capable of
subjecting the body assembly to an internal pressure of 10,000 psi for a minimum of 10 seconds.
4.6.4 Functional.
4.6.4.1 Maximum no-fire stimulus. A dc current pulse of 1.50
0.05 amperes shall be applied to the bridge
circuit of each electric ignition element for 60 2 seconds.
4.6.4.2 All-fire stimulus. Within 4 1 minutes after successfully completing the test in 4.6.4.1, a dc current
pulse of 5.0 + 0.05 amperes shall be applied to the bridge circuit of the ignition element. The time from
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