MIL-C-25F
TABLE VII. Qualification inspection.
Number of
Number of
Requirement
Method
sample
defectives
Examination or test
paragraph
paragraph
units to be
allowed
inspected
1/
Flashpoint of impregnant or filling compound
See A.2.1.3
0
Group I
Visual and mechanical examination (internal):
Material, design, construction, and physical
dimensions
2
0
Marking 2/
Workmanship
Visual and mechanical examination (external):
Marking 2/
25 3/
1
Workmanship
Dielectric withstanding voltage
Insulation resistance
Capacitance
Dissipation factor
Barometric pressure
Group II
Vibration (low frequency)
6
1
Salt atmosphere
Thermal shock and immersion
Group III
1
Terminal strength
6
1
Moisture resistance
Group IV
Seal
12
1
Low ambient temperature and capacitance change
with temperature
Life
1/ A specimen having one or more defects shall be considered as one defective.
2/ Marking defects are based on visual examination only and shall be charged only for illegible, incomplete, or
incorrect marking. Any subsequent electrical defects shall not be used as a basis for determining marking defects.
3/ One additional specimen is included in each sample of 27 specimens to permit substitution for the allowable
defective in group I.
4.5 Conformance inspection.
4.5.1 Inspection of product for delivery. Inspection of product for delivery shall consist of group A inspection.
4.5.1.1 Inspection lot. An inspection lot, as far as practicable, shall consist of capacitors grouped by style and
characteristics, as specified (see 3.1). Capacitors of different characteristics having the same impregnant shall be
considered as capacitors of the same characteristic.
4.5.2 Group A inspection. Group A inspection shall consist of the examinations and tests specified in table VIII, in
the order shown.
4.5.2.1 Sampling plan. The sampling plan shall be performed on an inspection lot basis as specified in table VIII.
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