MIL-PRF-15305F
TABLE IV. Qualification inspection Continued.
Inspection
Requirement
Method
Number of
paragraph
paragraph
Sample units to be
Inspected 4/
Group V
Fungus 3/
---------------------
2
Group VI
Solderability 1/ (both leads) - - - - - - - -
6
Resistance to solvents 1/ - - - - - - - - - -
4
Flammability (use 3 units for Solderability) -
(3)
1/ The units shall be clean units that have not been subjected to any other test.
2/ After the overload test is performed, a period of 24 hours shall elapse prior to taking electrical characteristics
(final) measurements.
3/ The fungus requirement is either by certification or performance.
4/ Combined submission will be in accordance with the appendix (see A.2.1.2)
4.5 Conformance inspection.
4.5.1 Inspection of product for delivery. Inspection of product for delivery shall consist of groups A and B
inspection. Group B inspection for preparation for delivery is not required when the qualifying activity has allowed
group B testing to be performed annually (see table VII).
4.5.1.1 Inspection lot. An inspection lot shall consist of all the coils of the same style and made of the same core
material and of the same specification sheet (or Military Standard sheet) produced under essentially the same
conditions, and offered for inspection at one time. The manufacturer may combine coils of different inductance values
and inductance tolerances. The inductance value shall be equally representative of the production lot for that period.
4.5.1.2 Group A inspection. Group A inspection shall consist of the examination and tests specified in table VI, in
the order shown.
4.5.1.2.1 Sampling plan. A sample of parts shall be randomly selected from each inspection lot in accordance with
table V. If one or more defects are found, the lot shall be rescreened and defects removed. After screening and
removal of defects, a new sample of parts shall be randomly selected in accordance with table V. If one or more
defects are found in the second sample, the lot shall be rejected and shall not be supplied to this specification.
TABLE V. Sampling plan.
Lot size
Group A
Group B
1 to
5
100 percent
100 percent
6 to
13
100 percent
5
14 to
50
13
5
51 to
90
13
7
91 to
150
13
11
151 to
280
20
13
281 to
500
29
16
501 to
1,200
34
19
1,201 to
3,200
42
23
3,201 to
10,000
50
29
10,001 to
35,000
60
35
35,001 to 150,000
74
40
150,001 to 500,000
90
40
500,001 and over
102
40
9
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