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AltitudeFeet In. Hg
Pressure
-1000-500
500100020003000400050006000700080009000
10000
31.0230.4729.9229.3828.8627.8226.8225.8424.9023.9823.0922.2221.3920.58
29.92
29.92
29.92
3
20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
10
15
20
25
30
35
40
45
10%
20%
30%
40%
60%
70%
80%
90%
20
25
2530
3035
35
40
40
45
45
50
5055
5560
6065
65 70
7075
75
80
85
12.5
13.0
14.0
PSYCHROMETRIC CHART
PSYCHROMETRIC CONVERSION FACTORS
BAROMETRIC PRESSURE
TEMPERATURE HUMIDITY RATIO
3
3
3
AIRFLOW
PSYCHROMETRIC CORRECTIONS FOR ALTITUDE
Complete humidity control
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