MIL-DTL-10057J
W= weight of the sample, in grams.
Determine the percentage of black powder by subtracting the percentage of aluminum from 100.0
percent.
When blending is accomplished in individual charge cases, the adequacy of the composition may be
determined by emptying one or more of the partly missed charges from the charge cases before they
have been closed, blending the ingredients and performing an analysis on the sample of the mixture.
In order to avoid the dangerous operation of screening the flash composition, this test may be
performed by screening the individual ingredient prior to blending.
4.7.3 Jumble. The simulator assemblies shall be tested in accordance with procedures
specified in MIL-STD-331, except that the duration of the test shall be limited to a minimum of 20
minutes. The assemblies and equipment shall be observed and inspected for compliance with
paragraph 3.4.
4.7.4 Conditioning requirements.
4.7.4.1 Ambient temperature (70°F ± 5°). The simulator assemblies shall be conditioned for
not less than twenty-four (24) hours at the specified ambient temperatures. At the end of the
conditioning period, the assemblies shall be tested in the following manner within 30 minutes after
removal from the conditioning chamber. The functioning performance shall be observed for
compliance with the requirements.
4.7.4.1.1 Static. The assemblies, conditioned at ambient temperature, shall be mounted
horizontally on a rigid horizontal support and fired by means of a lanyard attached to the fuze igniter
cord. The assembly shall not be shaken or agitated in any manner other than normal handling within
two (2) hours prior to test. Measuring of sound level intensity shall be accomplished using sound
Analyzers, microphone System and Sound Level Meters and the pick-up of the sound level shall be
located 75 ± 0.5 feet from the simulator test fixture.
4.7.4.1.2 Non-static. The assemblies, conditioned at ambient temperature, shall be fired by
placing the assembly in an ejection machine (DWG. 9200454). The fuze igniter cord shall be held in
a fixed position. There shall be no slack evident in the igniter cord prior to initiation. Upon ejection
of the assembly, the simulator shall be initiated. The throwing range of the ejection machine shall be
not less than 45 feet and the ground shall be free of large rocks. The assembly shall be measured and
observed for compliance with the requirements specified. Sound level intensity need not be
measured during this test.
4.7.4.2 Cold temperature (-65°F ± 5°F). The simulator assemblies shall be conditioned for 16
hours at the required cold temperature and fired within five (5) minutes after removal from the
conditioning chamber by the same method specified in 4.7.4.1.2 (Non-static). The functioning shall
be measured and observed for compliance with the requirements. If for any reason the units are not
able to be functioned within five (5) minutes, a cooler that has a stabilized controlled temperature
may be used to transport the units to the testing site for function test.
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