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|  MIL-G-85103B(AS)
has cooled to ambient, it shall be fired or cycled again in one 1-second burst.
The gun system shall meet the requirements of 3.2.1.3 and 3.2.5.2.
4.4.2.1.3 Low temperature. The gun system, when subjected to the low
temperature environment specified in MIL-STD-81O, Method 502.1, Procedure I,
stablized at -54C, shall be fired or cycled in two 1-second bursts with 5
minutes between bursts. The gun system shall meet the requirements of 3.2.1.3
and 3.2.5.3.
4.4.2.1.4 Humidity. The gun system after exposure to the humidity
environment of MIL-STD-810, Method 507.1, Procedure V, Steps 1 through 9, for a
total of 10 cycles (240 hours), shall be fired or cycled in one 1-second burst.
The gun system shall meet the requirements of 3.2.1.3 and 3.2.5.4.
4.4.2.1.5 Salt fog. The gun system shall, after exposure to salt atmosphere
specified in MIL-STD-810, Method 509.1, Procedure I, be fired or cycled in one 1-
second burst. After a 48-hour holding period at ambient atmosphere, the gun
system shall be fired or cycled again in one 1-second burst. The gun system
meets the requirements of 3.2.1.3 and 3.2.5.5.
4.4.2.1.6 Rain. The gun system, while being subjected to the rain
environment of MIL-STD-81O, Method 506.1, Procedure 1, and shall fire or cycle
two 1-second bursts with 5 minutes between bursts. The gun system shall meet the
requirements of 3.2.1.3 and 3.2.5.6.
4.4.2.1.7 Sand and dust. The gun system shall be subjected to the sand and
dust test of MIL-STD-81O, Method 510.1, Procedure I, and shall cycle 50 dummy
rounds. The gun system shall meet the requirements of 3.2.1.3 and 3.2.5.7.
4.4.2.1.8 Vibration. The gun system, after being subjected to the sand and
dust test of MIL-STD-81O, Method 514.2, Procedure IIb, Table 514-2-IV, Figure
514.2-A4, shall cycle dummy rounds in two 1-second bursts. The gun system shall
meet the requirements of 3.2.1.3 and 3.2.5.8.
4.4.2.1.9 Fungus. Fungus test in accordance with MIL-STD-81O, Method
508.1, is applicable if a test is required. Test shall not be required if
sufficient documentary evidence is provided to demonstrate that only non-
nutrient materials are used throughout, or that all parts are suitably treated to
resist fungi.
4.4.2.1.10 Acceleration.
4.4.2.1.10.1 Nonfiring. The gun sytem shall be subjected to the accelera-
tion tests in accordance with MIL-STD-810, Method 513.2, Procedure I. The
gravity levels shall be specified in Table IV. The gravity levels specified
shall be applied through the center of gravity of the gun pak within 75mm. The
gun system shall cycle one 1-second burst of dummy rounds after being tested in
each plane. The gun system shall meet the requirements of 3.2.1.3 and 3.2.5.10.
4.4.2.1.10.2 Firing. The gun system shall be subjected to the acceleration
test as specified in MIL-STD-810, Method 513.2, Proceudre II. The gun system
shall be fired or cycled in one 1-second burst while being subjected to the
gravity levels of Table III. The gun system shall meet the requirements of
3.2.1.3 and 3.2.5.10.
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