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Page Title:
Appendix "G" Temperature (High and Low) Test Procedure |
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|  MIL-C-46409D (AR)
APPENDIX "G"
TEMPERATURE (HIGH AND LOW) TEST PROCEDURE
10.0 PURPOSE
To determine the ballistic stability of ammunition after being stored at high or low
temperature.
20.0 EQUIPMENT
20.1 Equipment listed in the Temperature Test section of the appropriate Inspection
Equipment List shall be used.
20.2 Temperature-controlled container or containers capable of maintaining temperature
within a tolerance of 2F (insulated boxes which have been brought to the required
temperature may be used to transfer ammunition from the controlled-temperature storage to the
test weapon if portable controlled-temperature containers are not available).
20.3 The temperature-controlled container(s) shall be of sufficient capacity to permit
conditioning the ammunition to the desired temperature, and allow free circulation of air around
the cartridges.
30.0 TEST PROCEDURES
30.1 Pre-firing (Preparation for test)
The same procedures used in preparation for firing Chamber Pressure (Appendix "D") and
Function and Casualty (Appendix "F") shall be used for this test.
30.1.1 For purpose of safety, the Chamber Pressure test shall be conducted prior to firing
the Function and Casualty Test. If the chamber pressure of any individual cartridges exceeds the
limit set in the applicable specification, the Function and Casualty Test shall not be conducted.
30.1.2 Temperature of test ammunition shall be 60 to 80F, prior to conditioning at high or
low temperatures. the ammunition shall be placed in the temperature-controlled containers(s) in
such a manner that all cartridges are subjected to a uniform temperature, and maintained for the
time specified.
30.2 During firing.
30.2.1 The ammunition under test, stored at the temperature specified in the applicable
specification is removed from the controlled temperature container, and placed in the insulated
box (referenced in 20.2), which has also been conditioned to the temperature specified. The
insulated box is then placed at a convenient point the technician.
30.2.2 The procedures used for firing Chamber Pressure Test (Appendix "D") and Function
and Casualty Test (Appendix "E") shall be used for this test with the following exceptions:
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