BAROMETRIC PRESSURE: 29.921 in. HG
PSYCHROMETRIC
CHART
Normal Temperature
I-P Units
SEA LEVEL
-10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150
DRY BULB TEMPERATURE - °F
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
0
5
10
15
20
25
30
35
40
45
50
55
55
60
60
65
65
ENTHALPY - BTU PER POUND OF DRY AIR
0
5
10
15
20
25
30
35
40
45
50
ENTHALPY - BTU PER POUND OF DRY AIR
.1
.2
.3
.4
.5
.6
.7
.8
.9
1
1.1
1.2
1.3
VAPOR PRESSURE - INCHES OF MERCURY
0
10
20
25
30
35
40
45
50
55
60
65
70
75
80
85
DEW POINT TEMPERATURE - °F
Chart by: HANDS DOWN SOFTWARE, www.handsdownsoftware.com
15%
25%
2%
4%
6%
8% RELATIVE HUMIDITY
10% RELATIVE HUMIDITY
20%
30%
40%
50%
60%
70%
80%
90%
-5
0
0
5
5
10
10
15
15
20
20
25
25
30
30
35
35
40
40
45
45
50
50
55
55
60
60
65
65
70
70
75
75
80
80
85 WET BULB TEMPERATURE - °F
85
90
12.0
13.0
14.0 VOLUME- CU.FT. PER LB. DRY AIR
15.0
16.0
HUMIDITY RATIO - GRAINS OF MOISTURE PER POUND OF DRY AIR
BAROMETRIC PRESSURE: 29.921 in. HG
PSYCHROMETRIC
CHART
Normal Temperature
I-P Units
SEA LEVEL
Chart by: HANDS DOWN SOFTWARE, www.handsdownsoftware.com
DIAGRAMA C5. CARTA PSICROMÉTRICA DE BAJAS TEMPERATURAS
UNIDADES DEL SISTEMA BRITÁNICO
Page 36
