MIL-DTL-83298C
TABLE IX. Sampling inspection.
Test
Requirement
Inspection or test
method
paragraph
paragraph
Elongation and contraction
Leakage
Room temperature burst pressure
4.5.3.1 Production lot. A production lot shall consist of one size hose assembly manufactured on the
same production line(s) by means of the same production techniques, materials, controls, and design during
the same continuous production run.
4.5.3.2 Inspection sample. An inspection sample shall consist of hose lengths randomly selected from the
production lot without regard to quality. For each full or partial increment of 750 feet (228.6 m) of bulk hose
produced in the continuous run, one sample shall be subjected to the sampling tests.
4.5.3.3 Nonconformance of sampling tests. If one or more defects are found in the inspection sample,
both the qualifying and inspection activities shall be immediately notified and the production lot shall be rejected
and not be supplied to this specification. 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 sampling test in which the
original sample failed or all sampling tests may be required to be repeated on additional samples, at the option
of 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 the
corrective action taken shall be furnished to both the qualifying and inspection activities.
4.5.3.4 Disposition of sampling inspection samples. Samples that have been subjected to sampling
inspection are considered damaged and shall not be delivered as part of a contract or purchase order.
4.5.4 Periodic control test plan. Testing shall be specified in table X.
4.5.4.1 Tests. The hose shall be individually selected from a periodic control test lot and subjected to
the tests below.
4.5.4.2 Periodic inspection samples (see table X). For each size manufactured under essentially the
same conditions, periodic control testing shall be performed on either four samples for each periodic test
from every 20,000 feet (of bulk hose produced or one sample for each periodic test from every 5,000 feet
(1524 m). If there has been some production but the total number of footage produced has not reached
5000 feet (1524 m) for a specific size within three years, the manufacturer shall perform periodic control
tests on one sample for each periodic test of that size unless documented approval has been obtained
from the qualifying activity.
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