MIL-DTL-28786C
3.5.1 Functional requirements.
3.5.1.1 Rough handling test (when specified, see 6.2). When packs have been tested in accordance with 4.5.2.1,
all materials and components comprising each pack shall be free from damage or evidence of misplacement which
might affect the utility of the preservation method or pack. The switches and accessories within the tested packs shall
show no visible signs of damage. When specified (see 6.2), functional tests in accordance with the group A
inspection requirements of the applicable commodity specification shall be conducted on those switches subjected to
the rough handling test to determine freedom from operational malfunction.
3.5.1.2 Leakage test (when applicable). When a barrier enclosed unit pack has been tested in accordance with
4.5.2.2., there shall be no evidence of moisture within the unit pack.
3.6 Workmanship. The quality of workmanship shall assure acceptance of the completed preservation, packing,
and marking requirements in accordance with the inspections specified in section 4.
4. VERIFICATION
4.1 Classification of inspections. The inspections specified herein are classified as follows:
a. Materials inspection (see 4.2).
b. First article inspection (see 4.3).
c. Conformance inspection (see 4.4)
4.1.1 Inspection conditions. All inspections shall be performed in accordance with the test conditions specified in
the "General Requirements" of MIL-STD-202.
4.2 Materials inspection. Materials inspection shall consist of certification supported by verifying data that the
materials used are in accordance with the applicable requirements specified herein.
4.3 First article inspection. When specified (see 6.2), first article inspection shall be performed by the contractor,
after award of contract and prior to production, at a time and location acceptable to the Government. First article
inspection shall not be required:
a. When there have been no changes in materials, processes, or packaging design that will adversely affect
item protection since the last recorded inspection.
b. When detailed packaging instructions are furnished by the acquisition activity.
c. When commercial packaging is specified.
d. When a prior successful inspection was conducted on a like item and pack (subject to the approval of the
administrative contracting officer).
4.3.1 Sample size. One sample unit consisting of military level A or level B, as applicable, fully packed shipping
container shall be submitted for first article inspection. The sample for the rough handling test shall consist of the
pack selected for first article inspection. The sample for the leakage test shall be five unit packs selected at random
from the first article exterior pack (shipping container).
4.3.2 Inspection routine. The sample shall be subjected to the inspections specified in table IV and table V. The
leakage test, when applicable, shall follow the rough handling test.
4.3.3 Failures. One or more failures shall be cause for refusal to grant first article approval.
4.4.4 Resubmission of first article sample. If the sample fails to pass first article inspection, the contractor shall
change the preservation and packing processes to correct the cause of the deficiency. First article inspection shall be
performed on a corrected sample to prove that the corrective action is acceptable.
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