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Temperature and humidity storage mode) |
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|  MIL-C-82631(OS)
(b) Upon completion of five cycles, the temperature shall be main-
tained at +122 degrees F for 8 hours. During the 8-hour period, the
relative humidity shall be 50 percent for the first 2 hours, 95 percent
during the next 4 hours, and 40 percent during the final 2 hours. At
30-minute intervals the requirements of 4.5.3.3 (Continuity) shall be
met. Upon completion, the requirements of 4.5.2 and 4.5.3.2 shall be
met.
NOTE: The transitions between temperatures
shall be accomplished within the 8-hour period
so that the time at the high temperature is
approximately 16 hours. Each transition shall
not exceed l hours. The relative humidity
need not be controlled during the transition
periods.
4.5.4.8 Temperature and humidity storage mode). The cable connector,
in the packaged condition, shall be subjected to a 28-day temperature/
humidity test. The total test is made up of two 14-day temperature and
humidity cycles. The term "chamber temperature," as used in this test,
refers to the temperature of the air immediately surrounding the equip-
ment. Chamber temperature may be changed (1) by varying the temperature
of a single chamber or (2) by moving the test specimen from one constant
temperature chamber to another. The fluctuations from all specified
temperatures shall not exceed 10 degrees F. The following test sequence
is based on a start at 0800 Monday. Regardless of the actual day and
time the test is initiated, there shall be no deviation from the test
sequence as prescribed.
(a) At 0800 Monday place the test specimen in a chamber which has
been maintained at -65 degrees F for at least 2 hours immediately prior
to 0800 (humidity not controlled).
(b) At 1600 Monday the chamber temperature shall be changed to
+160 degrees F and 95 +3 -0 percent humidity. The chamber temperature
must reach +160 degrees F and 95 percent humidity not later than 1800.
(c) The test specimen shall be held under these conditions until
0800 Tuesday, at which time the temperature decrease shall begin. The
rate of decrease of chamber temperature shall be equal to or greater
than 36 degrees F per hours for at least 2 hours. Thus, at 1030, the
temperature of the air surrounding the test specimens must be +70 de-
grees F or lower. The chamber termperature must reach -65 degrees F no
later than 1400 and this temperature shall be held until 1600.
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