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MIL-M-29416 (MC)
4.5.13.2 Low temperature.  After having been tested and inspected
in accordance with the provisions of 4.5.13.1, the empty fuel tank
for 16 hours minimum.  The
module shall be soaked at -25F
temperature shall then be raised to ambient conditions, and the fuel
tank module inspected for cracking, cracked welds, and paint disin-
Evidence of these conditions or material degradation
tegration.
shall constitute failure of the low temperature test.
4.5.13.3 high temperature.  After having been tested and inspected
in accordance with the provisions of 4.5.13.2, the fuel tank module
for 48 hours.  The temperature shall
shall be soaked at 160F
then be lowered to ambient conditions, and the fuel tank module
inspected for cracking, cracked welds, and paint disintegration.
Evidence of these conditions for material degradation shall consti-
tute failure of the high temperature test.
4.5.13.4 Salt fog.  After having been tested and inspected as
specified in 4.5.13.3, the fuel tank module shall be subjected to
salt fog test in accordance with MIL-STD-810, method 509.1.  After
testing, the fuel tank module shall be inspected for cracking,
cracked welds, corrosion and peeling of paint.  Evidence of these
conditions or material degradation shall constitute failure.
4.5.13.5 Vibration test.  Using a minimum double amplitude of
1 inch, vibrate the fuel tank module for 1 hour at a frequency that
causes the test tank to be raised from the test table so that a flat
strap may be passed between the tank and the table.  Restrain the
tank on the table to prevent any horizontal motion.  Any breakage,
permanent deformation, or leakage will constitute failure of the
fuel tank.
4.5.13.6  Drop test.  Raise the full fuel tank module 2 feet from
a flat horizontal unyielding surface and drop.  Prior to dropping,
the module should be positioned at an attitude from which maximum
damage to the tank (including piping and fittings) is expected.
4.5.13.7  Leakage.  After having been tested and inspected in
accordance with 4.5.13.6, the fuel tank module shall be filled with
water and checked for leaks.  Any sign of leakage shall constitute
failure of the environmental test series.
4.6  Packaging.  The preservation, packaging, packing and con-
tainer marking shall be inspected, prior to shipment, to determine
conformance to section 5 of this specification.
5.
PACKAGING
5.1 Preservation and packaging.  Preservation and packaging shall
be level A, B, or industrial as specified (see 6.2) .
5.1.1 Level A.  The fuel tank module shall be preserved and
packaged in accordance with the applicable procedures of MIL-P-116
and MIL-STD-794.
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