MIL-C-62F
4.5.8.2 High frequency (applicable to all styles except CE63, CE64, CE70, and CE71). Capacitors shall be tested
in accordance with method 204 of MIL-STD-202. The following details and exceptions shall apply:
a.
Mounting of specimens: Body of the capacitor shall be rigidly mounted to the vibration-test apparatus.
b.
Test condition: B, except that the peak acceleration shall be 10 gravity units.
c.
Duration and direction of motion: 4 hours in each of two mutually perpendicular directions (total of 8 hours),
one parallel and the other perpendicular to the cylindrical axis.
d.
Measurements: During the last 30 minutes in each direction, an electrical measurement shall be made to
determine intermittent contacts or open- or short-circuiting. Detecting equipment shall be sufficiently
sensitive to detect any interruption with a duration of 0.5 ms or greater.
e.
Examinations after test: Capacitors shall be visually examined for mechanical damage and leakage of the
electrolyte.
4.5.9 Salt atmosphere (see 3.12). Capacitors shall be tested in accordance with method 101, test condition B, of
MIL-STD-202. After this test, capacitors shall be visually examined for corrosion and other defects that will affect life
or serviceability, for unwrapping of and mechanical damage to insulation sleeves, and obliteration of marking.
4.5.10 Temperature cycling and immersion (see 3.13).
4.5.10.1 Temperature cycling. Capacitors shall be tested in accordance with method 107 of MIL-STD-202. The
following details and exceptions shall apply:
a.
Conditioning prior to first cycle: 15 minutes at room ambient temperature.
Test condition: A, except that in step 1, capacitors shall be tested at -40C.
b.
c.
Measurements before and after cycling: Not applicable.
4.5.10.2 Immersion. Following temperature cycling, capacitors shall be tested in accordance with
method 104 of MIL-STD-202. The following details and exceptions shall apply:
a.
Test condition: C, except that the duration of each immersion shall be 15 minutes. Change from one
solution to the other shall be made in not more than 3 seconds.
b.
Time after final cycle allowed for measurements: Measurements shall be made within 30 minutes to 4
hours after capacitors are removed from the immersion tank.
c.
Measurements after final cycle: DC leakage, capacitance, and dissipation factor shall be measured at
room ambient temperature and as specified in 4.5.3, 4.5.4, and 4.5.5, respectively.
d.
Examinations after test: Capacitors shall be visually examined for corrosion, unwrapping of and mechanical
damage to insulating sleeves, leakage of the electrolyte, deformation of the case, and obliteration of
marking.
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