MIL-C-11272E
TABLE IV. Qualification inspection.
Number of
Number of failures
sample
Test method
Examination or test
Requirement
permitted 1/
units to be
paragraph
paragraph
inspected
Group I 2/
Visual and mechanical examination
Material, design, construction and
0
2
incl, and 3.20
to 3.20.2, incl
Visual and mechanical examination
Physical dimensions, marking 3/ and
workmanship
3.20.2, incl
61 4/
Dielectric withstanding voltage
1
or
Barometric pressure
62 5/
Insulation resistance
Capacitance
Dissipation factor (DF)
Quality factor (Q)
2
Group II
Shock (specified pulse)
1
12
Vibration, high frequency
Thermal shock and immersion
Group III
Moisture resistance
1
12
Group IV
Life
1
24
Group V
Solderability
Terminal strength
1
12
Temperature coefficient and
capacitance drift
1/ A sample unit having one or more defects shall be considered as a single failure.
2/ With the exception of the internal visual and mechanical examination, all tests of this group are nondestructive
tests.
3/ Marking will be considered a failure only if it becomes illegible as a result of any of the tests.
4/ For single-type submission, 1 additional sample unit is included in each sample of 63 sample units to permit
substitution for failure permitted.
5/ For combined-type submission, 2 additional sample units (1 of the highest and 1 of the lowest capacitance
value) are included in each sample of 64 sample units to permit substitution for the permitted failure (either the
highest or lowest capacitance value).
9
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