MIL-DTL-8794F
4.6.7.2 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.
4.6.7.3 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.
4.6.7.4 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.
4.6.7.5 Discontinuation and resumption of production of bulk hose (three years or more). If there has
been no production of a specific size for a period of three years or more, samples for each test shall be
randomly selected from the first lot produced when production of that size has been resumed. Two (2)
samples shall be subjected to each of the sampling tests and four (4) samples shall be subjected to each
of the periodic control tests (see table VIII).
4.7 Sample preparation.
4.7.1 Inspection conditions. Unless otherwise specified, all inspections shall be performed in
accordance with the test conditions specified in ASTM D380, or in accordance with the applicable test
method referenced in the test procedures. Unless otherwise specified, room temperature shall be
defined as +60°F to +90°F (15.56°C to 32.22°C).
4.7.1.1 Test fluid. The test fluid shall be water; lubricating oil conforming to SAE J1966, grade 50;
hydraulic fluid in accordance with MIL-PRF-5606, MIL-PRF-87257 or MIL-PRF-83282; or fuel in
accordance with ASTM D471, ASTM Reference fuel B. Water is an acceptable test fluid only for the
leakage, proof pressure, and burst tests. If water is used, the test article must be thoroughly dried before
use in further testing or prior to delivery.
4.7.1.2 Oil-aging. For tests that require a hose assembly to be oil-aged, the hose assembly shall be
completely immersed in hydraulic fluid within a non-pressurized closed container or reflux condenser (to
prevent distillation of the volatile matter in the fluid) and maintained at a temperature of 160°F ± 5°F
(71.1°C ± 5°C) for 7 days prior to the start of the test. During the aging period, the bore of the hose
assembly shall be open and no air shall be entrapped therein. No more than 10 hose assemblies shall
be aged in a given quantity of test fluid.
4.7.1.3 Air-aging. For tests that require a hose assembly to be air-aged, the hose assembly shall be
maintained in air at a temperature of 160°F ± 5°F (71.1°C ± 2.8°C) for 7 days prior to the start of the test.
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