MIL-DTL-11352K(AT)
table VIII. Prior to the test the vision block shall be conditioned at 38 °C (100 °F) and not more
than 50% relative humidity for 24 hours. After the test the vision block shall be conditioned at
23 °C (73 °F) and not more than 50% relative humidity for 24 hours. Subsequently, the vision
block shall be tested in accordance with 4.6.3.1, 4.6.3.2 and 4.6.3.3 and checked for any moisture
build-up, bond separator or other degradation.
TABLE VIII. Humidity and temperature profile.
Time
Air temperature
Relative humidity
(hours)
°C
(°F)
percent (%)
0100
37 (100)
95
0200
37 (100)
95
0300
37 (100)
95
0400
37 (100)
95
0500
37 (100)
95
0600
37 (100)
95
0700
41 (105)
81
0800
43 (110)
66
0900
49 (120)
55
1000
54 (130)
44
1100
60 (140)
37
1200
60 (140)
37
1300
66 (150)
30
1400
71 (160)
23
1500
71 (160)
23
1600
66 (150)
30
1700
66 (150)
30
1800
60 (140)
37
1900
54 (130)
44
2000
49 (120)
66
2100
41 (105)
81
2200
37 (100)
95
2300
37 (100)
95
2400
37 (100)
95
4.6.4.8 Corrosion resistance. To determine conformance to 3.7.8, the vision block shall
be tested in accordance with the salt fog test described in method 509, procedure I of
MIL-STD-810, or equivalent (see 4.4.1). Subsequently, the vision block shall be tested in
accordance with 4.6.3.1, 4.6.3.2, and 4.6.3.3 and checked for any physical damage.
4.6.4.9 Weathering resistance. To determine conformance to 3.7.9, the vision block
shall be tested as specified in 4.6.4.9.1 and 4.6.4.9.2.
4.6.4.9.1 Apparatus. The equipment used for this test and the simulated sunshine shall
be in accordance with method 505, procedure II of MIL-STD-810, or equivalent (see 4.4.1).
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