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Page Title:
Quality conformance inspection. |
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|  MIL-C-51542(EA)
4.3.2.2 For test. The unpackaged preproduction sample of converters shall
be tested in accordance with 4.4.4.1 and 4.4.4.2 for conformance to 3.3. Then
the converters shall be tested in the configuration specified in 4.4.4.1 for
conformance to 3.4.10
4.3.3 Acceptance/rejection criteria: Each converter in the packaged pre-
production sample shall meet the examination specified in 4.4.3.4. When tested
in accordance with 4.3.2.2 the unpackaged preproduction inspection sample shall
meet the requirements of 3.4.1 and the criteria of Test Plan IV of MIL-HDBK-781
to be acceptable.
4.4 Quality conformance inspection.
4.4.1 Lotting. A lot shall consist of the converters of one type produced
by one manufacturer, from the same materials, at the same locations, under
essentially the same manufacturing conditions, and at essentially the same
time.
4.4.2 Sampling.
4.4.2.1 For examination. The unpackaged sample converter for examination
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shall be conducted in accordance with MIL-STD-105. For the repair part acquisi
tion, the packaged converter for examination shall be conducted in accordance
with MIL-STD-105.
4.4.2.2 For test.
Each converter shall be tested.
4.4.2.3 For reliability production acceptance. A sample of four converters
shall be taken randomly from each production lot for reliability production
acceptance testing.
4.4.3 Inspection procedure.
4.4.3.1 For examination. The sample converters shall be examined in accor-
dance with 4.4.3.4(a) of the classification of defects. For the repair part
acquisition only, the packaging inspection (4.4.3.4(b)) shall also be Con-
ducted.
4.4.3.2 For test. Each converter shall be tested for cycling burn-in and
performance prior to packaging. Any converter failing any of the performance
requirements shall be rejected.
4.4.3.3 For reliability production acceptance test. The reliability pro-
duction acceptance test sample of unpackaged converters shall be tested in
accordance with 4.4.4.1 and 4.4.4.2 for conformance to 3.3. Then the convert-
ers shall be tested in the configuration specified in 4.4.4.1 for conformance
to 3.4.2.
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