MIL-DTL-3965H
e.
Measurements after exposure: Capacitors shall be returned to the inspection conditions specified in 4.3 and
within 24 hours after exposure, dc leakage, capacitance, and dissipation factor shall be measured as
specified in 4.7.5, 4.7.6, and 4.7.7 respectively.
f.
Examination after test: Capacitors shall be externally examined for leakage of the electrolyte. Detection of
leakage of electrolyte shall be determined by the use of thymol blue, or other suitable chemical-indicator
solution.
4.7.17 Stability at low and high temperatures (see 3.21). The measurements specified in table X shall be made in
the order shown. The capacitors shall be brought to thermal stability before the measurements are made. Thermal
stability will have been reached when no further change in capacitance is observed between two successive
measurements taken at 15-minute intervals.
4.7.17.1 Impedance. Capacitors shall be conditioned at -55°C +0°C, -3°C for a period of not less than 30 minutes
or until stable measurements can be obtained. The impedance shall be measured directly or determined from
measurements obtained on a bridge. Measurements shall be made at 120 ±5 Hz. Measurement accuracy shall be
within ±5 percent.
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