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|  MIL-F-8615D
4.5.11 Fuel resistance. This test is applicable to all components having
any parts whose physical properties are affected by contact with fuel. The
test shall be conducted in a continuous manner in accordance with the schedule
of table IV. Each period shall follow the preceding one in the order noted
with a minimum of delay. The soak periods shall be conducted with a body
of fluid in continuous contact with all affected parts. For the dry periods,
the component shall be drained, without disassembly, and blown dry with the
ports open and placed in a test chamber having air continuously circulating
around the component at the test temperature.
4.5.11.1 Test fluids. The test fluids for the fuel resistance test shall
be in accordance with TT-S-735, Types I and III and MIL-T-5624, JP-4 and
JP-5. For the high temperature soak periods, it is advisable to perform
the soak in a closed container with a pressure not to exceed 15 psi to
prevent boiling. For Class B components, MIL-T-S624 fuel may be used in
lieu of Type III if permitted by the item specification.
TABLE IV
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