MIL-DTL-38726B
4.6.2 Loss of product qualification.
4.6.3 Failure to meet test requirements. The manufacturer shall immediately notify the qualifying
activity at any time during the 12-month reporting period when the qualified product fails to meet the test
and inspection requirements of this specification. The manufacturer shall identify and indicate what
corrective action will be taken to correct the problem. Failure to take corrective action acceptable to the
qualifying activity may result in removal of the product from the QPL.
4.6.4 Failure to submit summary test data report. Failure to submit a report within 30 days after the
end of the 12 month reporting period may result in loss of qualification for the product.
4.6.5 Change to manufacturing process, materials or equipment. The manufacturer shall notify the
qualifying activity, in writing, of any changes in the manufacturing process, materials, or equipment used
to manufacture a QPL product. Subsequently, the qualifying activity will notify the manufacturer, in
writing, if a full re-qualification, partial re-qualification, or no additional testing is required as a result of
these changes.
4.6.6 No production during reporting period (12 months). When no production occurs during the
reporting period, a report shall be submitted to the qualifying activity certifying that the manufacturer still
has the capability and facilities necessary to produce the QPL product.
4.7 Test methods.
4.7.1 Examination of product. The adapter assembly shall be visually and physically examined for
conformance to the following requirements:
a.
Materials (see 3.4).
Dimensions (see 3.6.2).
b.
c.
Marking (see 3.8).
d.
Workmanship (see 3.9).
4.7.2 Proof pressure. Proof pressure testing shall be conducted in accordance with ASTM D380,
hydrostatic pressure test (using either hydraulic fluid, conforming to MIL-PRF-5606, MIL-PRF-6083 or
MIL-PRF-83282, or water as the test fluid). All test samples shall be subjected to the applicable proof
pressure specified in table II for not less than 3 minutes and not more than 5 minutes and observed for
evidence of leakage. Requirements shall be as specified in 3.6.1.
4.7.3 Leakage. Hose assemblies when subjected to the leakage test shall meet the requirements of
3.6.2. Hydraulic fluid conforming to MIL-PRF-5606, MIL-PRF-6083, MIL-PRF-83282, or water shall be
used as the test fluid. The following details shall apply:
a. A pair of unaged hose assemblies shall be subjected to 70 percent of the burst pressure
specified in table III for 5 minutes.
b. The pressure shall then be reduced to zero, after which the pressure shall again be raised to 70
percent of the specified burst pressure and held for an additional 5 minutes.
c. There shall be no evidence of adapter leakage, burst, deformation, movement relative to the
hose, or separation from the hose.
4.7.4 Burst pressure. Burst pressure testing shall be conducted in accordance with ASTM D380 on
the test samples that were subjected to the leakage test (see 4.6.3). The test samples shall be observed
throughout the test for evidence of leakage or failure. Requirements shall be as specified in 3.6.3.
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