MIL-DTL-6396F
4.5.1.1 Examination of product. Each cell shall be carefully examined to determine
conformance to all the requirements of this specification for which no specific tests are described
and to determine conformance with approved manufacturer's material, fabrication, inspection,
and applicable drawings.
4.5.1.2 Workmanship. Each cell shall be inspected to determine that the workmanship
conforms to MIL-STD-801 unless otherwise specified by the procuring activity.
4.5.1.3 Dimensional check. A check shall be made on each cell to ensure that all dimensions
critical to the installation are within the dimensional tolerances. The cell tolerances specified for
this test shall not conflict with the capacity requirements specified in 3.5.2.
4.5.1.4 Weight. The weight of each finished tank shall be checked to determine compliance
with 3.5.3.
4.5.1.5 Leakage. Tanks shall pass leakage tests acceptable to the procuring activity.
4.5.2 Stand test (sampling). Type II tanks selected in accordance with 4.3.2.2 shall be
collapsed and held strapped for 30 minutes in a position comparable to that required for
installation in its respective aircraft cavity. The tank shall then be supported and filled with the
applicable test fluid as specified in 4.4.1 and stand tested for 15 days or other agreed upon test
conditions established with the procuring activity. A brown paper liner in the cavity and a
staining agent in the test fluid shall be used for leak detection. A stand pipe shall be used to
ensure that all internal surfaces are in contact with fuel. Upon completion of the test, the tank
shall be examined for evidence of leakage or other failure.
4.5.3 Dissection test. If utilized, the sectioned portion of each tank selected as specified in
4.3.2.3 shall be examined for defects in accordance with MIL-STD-801.
4.5.4 Capacity. The capacity of the finished tank shall be checked to determine compliance
with 3.5.2.
4.5.5 Aging.
4.5.5.1 Tank, normal system (275 °F) (135 °C). The tank shall be filled to its normal level
with the test oil specified in 4.4.1 and table IV, and shall stand at 275 °F (135 °C) for 200 hours.
At the end of this period, the tank shall show no signs of deterioration or other unsatisfactory
condition as a result of the test.
4.5.5.2 Tank, hot oil system (325 °F) (163 °C). The tank shall be filled to its normal level
with the test oil specified in 4.4.1 and table IV, and shall stand at 325 °F (163 °C) for 200 hours.
At the end of this period, the tank shall show no signs of deterioration or other unsatisfactory
condition as a result of the test.
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