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|  MIL-F-48673 (AR)
Humidity tests
TABIE IX.
Test Conditions
MIL-STD-810
Paragraph
t
Method 507
1.
Room Ambient Uncontrolled Humidity
Procedure IV, 3.4
(non-operating)
3.4
+450 + 50C
2.
2 Hours (Min) (non-operating)
0
o
3.4
+25 + 5 C, RH 50%
3.
24 Hours (non-operating)
3.4
4.
5 cycles, 24 Hours each
0
0
60 + 5 C and 300 + 5%
95% RH
0
o
3.4
+25 + 5 C, 50% RH
5.
12 to 24 Hours
3.4
Room Ambient Uncontrolled Humidity
6.
(operating)
2. Differential Temperature Indicator (Dry bulb temperature -
) wet bulb temperature).
3. Separate Dry Bulb and Wet Bulb Indicators (with suitable
resolution) .
The preferred method is (l). If a wet bulb sensor is used, the
air flow past the sensor shall be at least 900 feet per minute-
Both the dry bulb and wet bulb sensors shall be located in the same
air stream with the dry bulb sensor oriented beside or upstream from
the wet bulb sensor.
4. 8.1.3.2 Humidity test equipment. The equipment listed in
Table X will be required to conduct the humidity test. All
measurements shall be made with instruments whose accuracy and
calibration has been verified periodically and meet specification
requirements.
41
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