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|  MIL-T-52698A
TEST METHOD NO. 1
RAIN TEST
1.
Test apparatus:
a.
Timing device.
b.
Measuring device (U.S. Weather Bureau type preferred).
c.
Spray fixture.
2.
Test procedure:
a.
Subject the truck to a simulated rainfall of not less than 4 inches
per hour. The simulated rainfall shall impinge on the truc k at an
angle of 45 degrees 5 degrees with a force equivalent to a 30 mph
wind. The simulated rainfall shall dispense uniformly over the
surface of the truck.
b.
Expose the top and left side of the truck to the rain described above
for a period of 5 minutes.
c.
Repeat "b" with top and front exposed.
d.
Repeat "b" with top and front side exposed.
e.
Repeat "b" with top and rear exposed.
f.
Examine all instruments and electric controls for evidence of
moisture.
h.
Demonstrate operation of the truck.
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