MIL-DTL-3965H
4.6.1.2.2 Rejected lots. The rejected lot shall be segregated from new lots and those lots that have passed
inspection. The rejected lot shall be 100 percent inspected for those quality characteristics found defective in the
sample and any defective found shall be removed from the lot. A new sample of parts shall then be randomly
selected in accordance with table VII. If one or more defects are found in this second sample, the lot shall be
rejected and shall not be supplied to this specification.
4.6.1.2.3 Subgroup 3 (solderability).
4.6.1.2.3.1 Sampling plan. Five samples shall be selected randomly from every inspection lot and subjected to the
subgroup 3 solderability test. The manufacturer may use electrical rejects from the subgroup 1 screening test for all
or part of the samples to be used for solderability testing. If there are one or more defects, the lot shall be considered
to have failed.
4.6.1.2.3.2 Rejected lots. In the event of one or more defects, the inspection lot shall be rejected. The
manufacturer may use one of the following options to rework the lot:
a.
Each production lot that was used to form the failed inspection lot shall be individually submitted to the
solderability test as required in 4.6.1.2.3.1. Production lots that pass the solderability test are available for
shipment. Production lots failing the solderability test can be reworked only if submitted to the solder dip
procedure in item b.
b.
The manufacturer shall submit the failed lot to a 100 percent solder dip using an approved solder dip
process in accordance with 4.7.12. Following the solder dip, the electrical measurements required in group
A, subgroup 1 tests shall be repeated on another 20 samples with no defects allowed. Thirteen additional
samples shall then be selected and subjected to the solderability test with no defects allowed. If the lot fails
this solderability test, the lot shall be considered rejected and shall not be furnished against the
requirements of this specification.
4.6.1.2.3.3 Disposition of samples. The solderability test is considered a destructive test and samples submitted to
the solderability test shall not be supplied on the contract.
4.6.1.3 Group B inspection. Group B inspection shall consist of the tests specified in table VIII in the order shown,
and shall be performed on sample units which have been subjected to and have passed group A inspection.
4.6.1.3.1 Sampling plan. The sampling plan shall be as specified in table VIII.
4.6.1.3.2 Rejected lots. The rejected lot shall be segregated from new lots that have passed inspection. The
contractor may rework it to correct the defects, or screen out the defective units, and resubmit for inspection in
accordance with table VIII. A new sample of parts shall then be randomly selected in accordance with table VIII. If
one or more defects are found in this second sample, the lot shall be rejected and shall not be supplied to this
specification. If an inspection lot is rejected under subgroup 3 test, the lot shall not be resubmitted.
4.6.1.3.3 Disposition of sample units. Sample units that have been subjected to subgroup 2 of group B inspection
shall not be delivered on the contract or purchase order. Sample units which have been subjected to and have
successfully passed subgroups 1 or 3 of group B inspection may be delivered on the contract or purchase order;
however, every 12 months ten samples which have successfully passed the test of subgroup 3 shall be tested as
specified in 4.6.2.1.
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