MIL-PRF-22885H
TABLE XI. Zero defect sampling plan.
Number of switches
Lot size
to be tested
Subgroup 2
Subgroup 1
(major) 1/
(minor) 1/
1-
8
All
All
9-
12
All
5
13 -
50
13
5
51 -
90
13
7
91 -
150
13
11
151 -
280
20
13
281 -
500
29
16
501 - 1,200
34
19
1,201 - 3,200
42
23
3,201 - 10,000
50
29
10,001 - 35,000
60
35
1/
Major and minor defects are defined in section 6.
Inspection for minor defects is applicable to visual
and mechanical examination only.
4.7.4.1 Switch contact resistance. The following details shall apply:
a.
Measurements shall be made between the terminals of the contacts of the same pole forming a switching
circuit. Three measurements shall be made on each pair of switch contacts. The switch contacts shall be
operated once between each measurement.
Test current: 0.1 ampere ±5 percent. After electrical endurance, use the electrical parameters of the
b.
electrical endurance test load.
Open-circuit test voltage: 6 volts direct current (V dc) ±1 V dc. After electrical endurance, use the electrical
c.
parameters of the electrical endurance test load.
d.
Number of test actuations: Three.
e.
Number of measurements per actuation: One measurement.
4.7.4.2 Lamp contact resistance. The following details shall apply:
Preparation for test: Lamp circuit continuity shall be established using the applicable test plug (see figure 2).
a.
Test current: 0.1 ampere ± 5 percent.
b.
Test voltage: 6 V dc ±1 V dc.
c.
d.
Number of test plug insertions: Three.
e.
Number of measurements per insertion: One measurement.
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