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MIL-L-82452A(OS)
Maintain at +140 +5,  -0F for 4 hours minimum, then within 2.5
b.
0.5 hours cool chamber to -45 +1, -5F.
Maintain at -45 +0, -5F for 4 hours minimum, then within 2.5
c.
0.5 hours return chamber to room temperature.
Repeat this schedule for a minimum of three cycles.
4.5.2.3.2 Temperature, operating.  The Logic Assembly, mounted as
described in figure 1, shall meet the quality conformance test requirements of
4.7 except as specified below.
a.
The Logic Assembly shall be stabilized for 1 hour at a
temperature of 140 +5, -0F, then transferred to an environment
at 98 +5, -0F and tested to assure conformance with performance
and product character-istics of this specification (column II
values).  This conformance shall be shown to exist for any
combination of power supply and input voltages in table I
(Column II) and table II (column II) of this specification.
The Logic Assembly shall be stabilized for 1 hour at a
b.
temperature of O +0, -5F, then transferred to an environment at
32 +0, -3F and tested to assure conformance with performance
and product character-istics of this specification (column II
values) . This conformance shall be shown to exist for any
combination of power supply and input voltages in table I
(column II) and table II (column II) of this specification.
4.5.2.4 Pressure.  Subject the unpackaged Logic Assembly to absolute
pressures of 2.7
or less and 20.0
or more, sustained for 30
minutes at each pressure level.
4.5.2.5 Humidity.  The unpackaged Logic Assembly shall be placed in a
suitable test chamber and subjected to at least 95 percent relative humidity
at a temperature of 110 +5, -0F for a period of 8 hours minimum. Upon
completion of this test, remove the Logic Assembly from the chamber and
immediately initiate the acceptance test (see 4.7).
4.5.2.6 Life test.
4.5.2.6,1 Cycling test.  The Logic Assembly shall be energized for 200
cycles wherein the duty cycle shall be 9 minutes on and 10 minutes off. On
each cycle all functions shall be properly loaded and energized.
4.5.2.6.2 Steady state test.  The Logic Assembly shall be operated for a
period of 200 continuous hours with steady state power applied,
4,6 Periodic production.  Periodic production samples shall be selected
from units having satisfactorily passed the quality conformance tests and
examinations of 4.7.  These samples shall be subjected to the tests of table
12

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