MIL-PRF-49465C
TABLE VII. Group A sampling plan.
Subgroup 2
Lot size
sample size
2
to
13
100%
14
to
150
13
151
to
280
20
281
to
500
29
501
to
1,200
34
1,201
to
3,200
42
3,201
to
10,000
50
10,001
to
35,000
60
35,001
to
150,000
74
150,001
to
500,000
90
500,001
and
over
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4.6.2.3.2 Rejected lots. In the event of one or more defects, the inspection lot is 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 4.8.3. 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
4.6.2.3.2b.
b.
The manufacturer submits the failed lot, to a 100 percent solder dip using an approved solder dip process in
accordance with the appendix. Following the solder dip the electrical measurements required in group A,
subgroup 1 tests shall be repeated on 100 percent of the lot. Lot acceptance for the electrical measurements
shall be as for the subgroup1 tests. Six additional samples shall then be selected and subjected to the
solderability test with zero defects allowed. If the lot fails this solderability test the lot may be reworked a
second time and be retested. If the lot fails the second rework, the lot shall be considered rejected and shall
not be furnished against the requirements of this specification.
4.6.2.3.3 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.
4.7 Periodic inspection. Periodic inspection shall consist of group B. Except where the results of these
inspections show noncompliance with the applicable requirements (see 4.7.3), delivery of products which have
passed group A shall not be delayed pending the results of these periodic inspections.
4.7.1 Group B inspection. Group B inspection shall consist of the tests specified in table VIII, in the order shown.
The specified number of sample units shall be selected from inspections lots that have been subjected to and have
passed group A inspections. A separate sample shall be selected from lots as defined 4.7.1.1 for each enclosure
material and element technology. Group B samples shall be representative of production.
4.7.1.1 Sampling plan.
4.7.1.1.1 Semiannually (subgroup 1 and subgroup 2). Every 6 months the specified number of sample units shall
be subjected to the examination and test of table VIII. The samples shall be selected from a lot as defined 4.6.1.1,
and where possible shall be representative of the styles included in the lot. The manufacturer should select samples
so that a maximum variety of styles produced are tested. A separate set of samples shall be tested for each
enclosure material.
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