MIL-S-27447A(USAF)
*4.3.1 Individual tests. Each survival kit shall be subjected to the following tests:
a. Examination of product See 4.4.1 b. Dimensional check-assembly See 4.4.2
4.3.2 Sampling plan and tests.
*4.3.2.1 Lot. A lot shall consist of 200 survival kit assemblies or fraction thereof, manufactured under essentially the same conditions and submitted for inspection at substantially the same time.
*4.3.2.2 Sampling plan. One survival kit assembly shall be selected at random from each lot and subjected to the following tests.
a. Altitude test See 4.4.3 b. Humidity test See 4.4.4 c. Pull test See 4.4.5
4.3.2.2.1 Rejection and retest. When one or more items from a lot fail to meet the specification, acceptance of all items in the lot will be withheld until the extent and cause of failure are determined. After corrections have been made, all necessary tests shall be repeated.
4.3.2.2.2 Individual tests may continue. For production reasons, individual tests may be continued pending the investigation of a sampling test failure. But final acceptance of the entire lot shall not be made until it is determined
that the lot meets all the requirements of this specification.
4.3.2.2.3 Defects in items already accepted. The investigation of a test failure could indicate that defects may exist in items already accepted. If so, the contractor shall fully advise the procuring activity of all defects likely to be found and methods of correcting them.
4.4 Test methods.
Examination of product. Each survival kit shall be examined to determine conformance to this specification with respect to material, weight, workmanship, and marking.
*4.4.2 Dimensional check. Each complete survival kit assembly shall be examined for conformity to the dimensions specified in 3.5.1.
4.4.3 Altitude test. The survival kit assembly shall be placed horizontally in the test chamber with a 20 pound weight placed on top of the kit. The internal pressure of the chamber shall be reduced to 3.44 inches of mercury (50,000 feet, equivalent) within one minute. The equipment shall be maintained under these conditions for 30 minutes. At the conclusion of this period, the kit shall be removed from the chamber and shall be submerged in water to a depth of 1 foot for not less than five minutes. At the conclusion of this time, the kit shall be removed and dried by air blast. The kit shall then be opened and the survival components inspected or moisture. Any evidence of moisture shall be cause for rejection.
4.4.4 Humidity test. The complete kit shall be subjected to the humidity test outlined in procedure I of MIL-E-5272, for not less than 120 hours.
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