MIL-DTL-25579G
4.3.3.2 Nonconformance of periodic control tests. If a sample fails a periodic control test, both the qualifying
and inspection activities shall be immediately notified of such failure. Acceptance and shipment of the product
shall be discontinued until corrective action, acceptable to the qualifying activity, has been taken. The
corrective measures shall be performed on the materials or processes, or both, as warranted, and on all
products considered subjected to the same failure. Once the corrective action has been completed, either the
specific periodic control test in which the original sample failed or all periodic control tests may be required to
be repeated on additional samples, at the option of the qualifying activity. Furthermore, the sampling tests may
be re-instituted in addition to the periodic control tests if deemed applicable by the qualifying activity. However,
final acceptance shall be withheld until testing has shown that the corrective action was successful. In the
event of a failure after re-inspection, information concerning the failure and corrective action taken shall be
furnished to both the qualifying and inspection activities.
4.3.4 Disposition of test specimens. Samples that have been subjected to any sampling or periodic control
tests are considered damaged and shall not be delivered as part of a contract or purchase order.
4.3.5 Acceptance of conformance inspection data. For identical requirements and test procedures, using an
identical fitting, conformance inspection data from MIL-DTL-27267 or MIL-DTL-27272 shall be accepted as
conformance inspection data for MIL-DTL-25579, providing that documented approval has been obtained from
the qualifying activity. When conformance inspection data from MIL-DTL-27267 is to be accepted as
conformance inspection data for MIL-DTL-25579, two feet of bulk hose shall be considered to be the equivalent
of one hose assembly.
4.4 Inspection conditions. Unless otherwise specified, all required inspections shall be performed in
accordance with the test conditions specified in 4.5.
4.5 Test methods. Test methods used shall be as specified in table VI. For qualification testing, the
sequence of tests performed shall be in accordance with table VII. Room temperature shall be defined as 60 to
100°F (16°C to 38°C) unless otherwise specified. Class 2 hose assemblies shall be tested at 275°F (135°C)
whenever a higher temperature is specified.
4.5.1 Examination of product. Each hose assembly shall be visually and physically examined for
conformance to the configuration specified in the applicable specification sheet and the following requirements:
a. Materials (see 3.3).
b. Design and construction (see 3.5).
c. Dimensions and weights (see 3.5.4).
d. Cleanliness (see 3.6.20).
e. Product identification (see 3.7).
f. Interchangeability (see 3.8).
g. Workmanship (see 3.9).
4.5.2 Proof pressure. Prior to testing, each hose assembly shall be examined to ensure that it is properly
assembled. Samples shall then be subjected to testing in accordance with SAE-AS2078 using the applicable
proof pressure as specified in table III. However, hose assemblies with aluminum flange fittings (class 2) shall
be proof tested using the applicable operating pressure listed in table III. Test fluid shall be water; however,
fluid in accordance with MIL-PRF-5606, MIL-PRF-83282, or MIL-PRF-87257 may be used during qualification
testing. Conformance shall be as specified in 3.6.2.
4.5.3 Leakage. Prior to testing, the exterior of the samples shall be cleaned free of oil and of any residues.
Samples shall be subjected to testing in accordance with SAE-AS2078. Test fluid shall be water or fluid in
accordance with MIL-PRF-5606, MIL-PRF-83282, or MIL-PRF-87257. A white paper towel, wrapped tightly
around the entire length of the sample, shall be used to check for leakage. Conformance shall be as specified
in 3.6.3
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