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Page Title:
Temperature and humidity non-operating condition |
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|  MIL-P-82436(OS)
TABLE X
SHOCK TEST SCHEDULE
4.4,4.5
Temperature and humidity non-operating condition. Two pre-
production pumps shall be subjected, in the non-operating condition, to
temperature and humidity cycling in the following manner: The specimen
shall be placed in a temperature chamber which has been stabilized at an
environmental temperature of -45 F +0 F -5 F. The specimen shall remain
in the environment for 6 hours. (As an alternative procedure, the specimen
may be placed in the chamber, with the chamber at room ambient tempera-
ture. Chamber temperature shall then be reduced to -45 F +0 F -5" F
within 2 hours maximum. The specimen shall thereafter remain in the
chamber for 4 hours.) The specimen shall then be subjected to an environ-
mental temperature of +140 F +5 F -0 F. Maximum transition time from
the low temperature to the high temperature shall be 2 hours. The specimen
shall remain in the high temperature for 4 hours. This cycle shall be
performed 3 times; maximum transition time shall be 2 hours. The specimen
shall subsequently be subjected to an environment of +110 F +5 -0 F at
a minimum relative humidity of 9.5 percent for a minimum of 8 hours. There-
after, one pump shall be operated in accordance with 4.4.4.6 and one pump
shall be operated in accordance with 4.4.4.7. Prior to operation the pump
may be wiped dry. Drying by an air blast or oven is not permitted.
4.4.4.6
Low temperature operating. Before testing, the pump shall be
conditioned at a temperature of 0 F 5 F for a period of 1 hour.
Immediately thereafter, the pump shall be operated in an environmental
temperature of 0 F 5 F, for a period of 7 minutes. Otto fuel shall
be supplied to the pump at 0 F 5 F. The pump shall be operated in
accordance with and meet the requirements of 4.4.4.1. Post-test servicing
and maintenance shall be performed in accordance with 4.5.7.
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