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% Rel. Hum. l Dew| Point % Rel. Hum. DewPoint % Rel. Hum. DewPoint % Rel. Hum. Dew-
1
Point Grs. per Cu. Ft.
Dry-Bull Temp.
% Rel; Hum. DewPoint % Rel. Hum. DewPoint % Rel. Hum. DewPoint DewPoint
190 Am. Soc. of Heat.-Vent. Engineers Guide, 1922
RELATIVE HUMIDITY, DEW-POINTS AND GRAINS OF MOISTURE PER CUBIC FOOT
Barometric Pressure--30 Inches
Degrees Wet-Bulb Depression
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52 4 -17 0.18 54 8 -4 0.38 3 -20 0.14 56 11 5 0.55 7 -5 0.35 2 -25 0.10 58 14 11 0.75 10 4 0.54 6 -6 0.32 1 -30 0.05 59 16 14 0.89 11 8 0.61 7 0 0.42 3 -20 0.14
60 17 17 0.98 13 11 0.75 9 4 .0.52 5 -8 0.29 61 18 19 1.07 14 14 0.83 10 8 0.63 6 -1 0.39 62 20 21 1.23 16 16 0.98 12 11 0.74 8 3 0.49 63 21 23 1.33 17 19 1.08 14 14 0.86 10 7 0.60 64 22 25 1.44 18 21 1.18 15 17 0.98 11 11 0.72
65 24 66 25 67 26 68 27 69 28
27 29 31 33 34
1.63 20 1.75 21 1.88 22 2.00 23 2.16 24
24 26 28 29 31
1.36 16 1.47 17 1.59 18 1.72 20 1.85 21
19 22 24 26 28
1.09 1.19 1.35 1.50 1.63
13 14 15 16 17
14 17 19 22 24
0.86 0.98 1.09 1.20 ,1.36
70 29 71 30 72 31 73 32 74 33
36 38 40 41 43
2.31 25 2.47 27 2.64 28 2.81 29 2.99 29
33 35 37 38 40
2.00 22 2.23 23 2.38 24 2.55 25 2:63 26
30 32 33 35 37
1.76 1.85 2.04 2.20 2.36
19 20 21 22 23
26 28 30 32 34
1.52 1.66 1.79 1.94 2.09
75 34 44 3.18 30 42 2.81 27 39 2.53 24 36 2.25 76 34 46 3.28 31 43 2.99 28 41 2.70 25 38 2.41 77 35 48 3.49 32 45 3.19 29 42 2.89 26 39 2.59 78 36 49 3.70 33 46 3.39 30 44 3.08 27 41 2.78 79 37 50 3.92 34 48 3.60 31 46 3.29 28 43 2.97
80 38 81 39 82 39 83 40 84 40
52 53 55 56 57
4.16 35 4.40 36 4.53 36 4.65 37 4.94 37
50 51 52 54 55
3.83 32 4.06 33 4.19 33 4:44 34 4.57 35
47 49 50 52 53
3.50 3.72 3.84 4.08 4.33
29 30 30 31 32
44 46 48 49 51
3.17 3.38 3.49 3.72 3.95
85 41 59 5.22 38 57 4.84 36 54 4.59 33 52 4.20 86 42 60 5.52 39 58 6.12 36 56 .4.73 33 54 4.33 87 43 61 5.82 40 59 5.41 37 57 5.00 34 55 4.60 88 43 62 5.99 40 61 5.58 37 . 59 5.16 35 57 4.88 89 44 64 6.32 41 62 5.89 38 60 5.46 36 58 5.17
90 44 92 45 94 4696 47 98 48
65 68 70 72 75
6.51 7.06 7.65 8.28 8.96
41 42 43 44 45.
63 66 68 71 73
6.06 39 6.59 40 7.15 41 7.76 42 8.40 43
61 5.77 64 6.28 67 . 6.82 69 7.40 72 8.03
36 37 38 39 40
59 62 65 67 70
5.33 5.81 6.32 6.87 7.47
100 49 77 9.69 46 104 50 82 11.06 48 108 52 86 12.85 49 112 53 91 14.84 51 116 54 95 16.87 52 120 55 100 19.05 53
76 9.09 44 80 10.62 46 85 12.11 47 90 14.28 49 94 16.21 50 98 18.37 51
74 8.70 41 72 8.10 79 10.18 43 .77 9.51 84 11.62 45 82 11.12 88 13.70 47 87 13.12 93 15.62 48 91 14.98 97 17.69 49 96 16.06
Am. Soc. of Heat.-Vent. Engineers Guide, 1922
191
RELATIVE HUMIDITY, DEW-POINTS AND GRAINS OF MOISTURE PER CUBIC FOOT
Barometric Pressure--30 Inches
Degrees Wet-Bulb Depression
21 4qh2-UWV 3 o'J
22 U4c>m..
aO3
23 24
u
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<chUm*2.. 23 ou
66 10 68 13 70 15 72 18 74 20 75 21 76 22 77 23 78 24 79 -25 80 26 81 27 82 28 83 29 84 29 85 30 86 31 87 32 88 32 89 33
11 17 22 26 30 32 34 36 38 40 42 43 45 47 48 50 52 53 55 56
0.70 0,97 1.20 1.53 1.81 1.96 2.12 2.29 2.47 2.65 2.74 3.04 3.26 3.48 3.58 3.82 4.07 4.33 4.46 4.74
7 10 12 15 17 18 19 20 21 22 23 24 25 26 26 27 28 29 30 31
2. a 17 22 27
29 31 33 35 37
39 41 42 44 46
48 49 51 52 54
0.49 0.75 0.96 1.28 1.54 1.68 1.84 1.99 2.16 2.33 2.52 2.71 2.91 3.12 3.31 3,44 368 3.92 4 18 4.45
3 -11. 62 9 11 12 17 14 23 15 25 16 27 17 29 18 31 19 34 20 36 21 38 22 39 23 41 24 43 25 45 26 47 26 48 27 50 28 51
0.21 0 0.45 3 -11 0.72 6 2 1.02 9 11 1.27 11 18
1.40 12 1.55 13 1.69 14 1.85 16 2.01 17
21 23 26 28 30
2.19 . 18 2.37 19 2.56 20 2.76 21 2.97 21
32 34 36 38 40
3.18 22 3.41 23 3.52 24 3.76 25 4.02 26
42 44 46 47 49
0.22 0.48 0.77 1.00 1.12 1.26 1.39 1.64 1.80 1.97 2.14 2.33 2.52 2.59 2.80 3.02 3.25 3.48 3.73
90 34 92 35 94 36 96 37 98 38 100 39 104 41' 108 43 112 44' 116 46 120 47
3d CO fi io CH a
57 5.03 31 60 5.49 32 63 5.99 33 66 6.52. 35 68 7.10 36
71 7.71 37 76 9.07 39 81 10.63 41 85 12,26 42 90 14.33 44 94 16.28 45
25
t.
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-
*3 c <*i
23 ou
55 4.59 58 5.02 61 5.49 64 6.17 66 6.72
69 7.31 74 8.63 79 10.14 84 11.68 88 13.69 93 15.60
26
29 30 31 32 34 35 37 39 40 42 43
53 4.29 56 4.71 59 5.16 62 5.64 64 6.35
67 6.92 72 8.19 77 9.64 82 11.10 87 13.04 92 14.92
27
26 28 29 30 32 33 35 37 38 40 41
51 3.85 54 4.39 57 4.82 60 5.29 63 5.98
65 6.52 71 7.75 76 9.15 81 10.54 86 12.40 90 14.24 28
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% Rel. Hum. DewPoint DewPoint Grs. per Cu. Ft. % Rel. Hum. Dew- . Point Grs. per Cu. Ft. DewPoint Grs. per | Cu. Ft.
75 9 76 11 77 12 78 13 79 14
15 18 21 24 26
0.84 1.06 1.20 1.34 1.48
7 8 8 12 9 16 10 19 11 22
0.66 4 2 0.77 5 4 0.90 6 9 1.03 8 13 1.17 9 16
0.37 1 -23 0.09 0.48 3 -10 0.29 0.60 4 -2 0.40 0.82 5 5 0.51 0.95 6 10 0.64
80 15 28 81 16 31 82 17 33 83. 18. 35
1.64 1.80 1.98 . 2,16
12 13 14 15
24 27 29 31
1.31 10 1.47 11 1.63 12 1.80 13
20 22 25 27
1.09 7 1.24 9' 1.40 10 1.56 . It
13 17 20 23
0.77 1.02 1.16 1.32