Flow
Rate • Pressure
• Temperature Table • Gas
Constants • Concentration
Equivalents
Temperature Conversion • Dew
Point vs Parts Per Million
| Moisture
in Gases - Approximate Relationships |
| Dewpoint |
PPM
on
Volume Basis |
| °C |
°F |
| -90 |
-130 |
.0923 |
| -88 |
-126 |
.134 |
| -66 |
-123 |
.184 |
| -84 |
-119 |
.263 |
| -82 |
-116 |
.382 |
| -78 |
-112 |
.526 |
| -76 |
-108 |
.747 |
| -74 |
-105 |
1.01 |
| -72 |
-101 |
1.38 |
| -70 |
-98 |
1.88
|
| -68 |
-94 |
2.55
|
| -66 |
-90 |
3.44 |
| -64 |
-87 |
4.60 |
| -62 |
-83 |
6.10 |
| -60 |
-80 |
8.07 |
| -58 |
-78 |
10.6 |
| -56 |
-72 |
14.0 |
| -54 |
-69 |
18.3 |
| -52 |
-65 |
23.4 |
| -50 |
-62 |
31.1 |
| -48 |
-58 |
39.4 |
| -46 |
-54 |
49.7 |
| -44 |
-51 |
49.7 |
| -42 |
-47 |
63.2 |
| -40 |
-44 |
80.0 |
| -38 |
-40 |
101. |
| -36 |
-36 |
127. |
|
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|
| -34 |
-33 |
159. |
| -32 |
-29 |
198. |
| -30 |
-26 |
249. |
| -28 |
-22 |
309. |
| -26 |
-18 |
376. |
| -24 |
-15 |
462. |
| -22 |
-11 |
566. |
| -20 |
-8 |
691. |
| -18 |
-4 |
841. |
| -15 |
0 |
1,020. |
| -14 |
+3 |
1,230. |
| -12 |
+7 |
1,490. |
| -10 |
+10 |
1,790. |
| -8 |
+14 |
2,140. |
| -6 |
+18 |
2,560. |
| -4 |
+21 |
3,060. |
| -2 |
+25 |
3,640. |
| 0 |
+28 |
4,320. |
| +2 |
+32 |
5,100. |
| +4 |
+36 |
6,020.
|
| +6 |
+39 |
7,060. |
| +8 |
+42 |
8,130.
|
| +10 |
+46 |
9,370. |
| +12 |
+50 |
10,720. |
| +14 |
+54 |
12,280. |
| +16 |
+57 |
14,140. |
| |
+60 |
15,980. |
| |
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18,160 |
|
