15
COPYRIGHT 2008, ALL RIGHTS RESERVED
PERMA PURE LLC
SE-MAN-003
Sample
Conditioning
Systems
Technical
Manual
Revision: 000
Page 15 of 16
MOISTURE CONVERSION TABLE
DEW POINT
°F
DEW POINT
°C
VAPOR PRESSURE
Mm Hg
ppm by VOLUME
RELATIVEHUMIDITY
@70°F
ppm by WEIGHT
in air
-110 -166
.0000010
.00132
.0000053
0.00082
-108 -162
.0000018
.00237
.0000096
.0015
-106 -159
.0000028
.00368
.000015
.0023
-104 -155
.0000043
.00566
.000023
.0035
-102 -152
.0000065
.00855
.000035
.0053
-100 -148
.0000099
.0130
.000053
.0081
-98 -144
.000015
.0197
.000080
.012
-96 -141
.000022
.0289
.00012
.018
-94 -137
.000033
.0434
.00018
.027
-92 -134
.000048
.0623
.00026
.039
-90 -130
.00007
.0921
.00037
.057
-88 -126 .00010 .132 .00054 .082
-86 -123
.00014
.184
.00075 .11
-84 -119
.00020
.263
.00107 .16
-82 -116
.00029
.382
.00155 .24
-80 -112
.00040
.562
.00214 .33
-78 -108
.00056
.737
.00300 .46
-76 -105
.00077
1.01
.00410 .83
-74 -101
.00105
1.38
.00559 .86
-72 -98 .00143 1.88 .00762 1.17
-70 -94
.00194
2.55
.0104
1.58
-68 -90
.00261
3.43
.0140
2.13
-66 -87
.00349
4.59
.0187
2.84
-64 -83
.00464
6.11
.0248
3.79
-62 -80
.00614
8.08
.0328
5.01
-60 -76
.00808
10.6 .043 6.59
-58 -72
.0106
13.9
.0565
8.63
-56 -69
.0138
18.2
.0735
11.3
-54 -65
.0178
23.4
.0948
14.5
-52 -62 .0230
30.3 .123 18.8
-50 -58 .0295
38.8 .157 24.1
-48 -54 .0378
49.7 .202 30.9
-46 -51 .0481
63.3 .257 39.3
-44 -47 .0609
80.0 .325 49.7
-42 -44
.0768
101 .410 62.7
-40 -40
.0966
127 .516 78.9
-38 -36
.1209
159 .644 98.6
-36 -33
.1507
198 .804
122.9
-34 -29 .1873
246 1.00 152
-32 -26 .2318
305 1.24 189
-30 -22 .2859
376 1.52 234
-28 -18 .351 462 1.88 287
-26 -15 .430 566 2.30 351
-24 -11 .526 692 2.81 430
-22 -8 .640 842 3.41 523
-20 -4 .776
1020
4.13 633
-18 0 .939
1240
5.00
770
-16 +3
1.132
1490
6.03 925
-14 +7 1.361
1790 7.25 1110
-12 +10 1.632
2150 8.69 1335
-10 +14 1.950
2570 10.4 1596
-8 +18 2.326
3060 12.4 1900
-6 +21 2.765
3640 14.7 2260
-4 +25 3.280
4230 17.5 2680
-2 +28 3.880
5100 20.7 3170
0 +32 4.579
6020 24.4 3640
+2 +36 5.294
6970 28.2 4330
+4 +39 6.101
8030 32.5 4990
+6 +43 7.013
9230 37.4 4730
+8 +46
8.045
10590
42.9 6580
+10 +50 9.029
12120 49.1 7530
+12 +54 10.52
13840 56.1 8600
+14 +57 11.99
15780 63.9 9800
+16 +61 13.63
17930 72.6 11140
+18 +64 15.48
20370 82.5 12650
+20 +68 17.54
23080 93.5 14330
+22 +71
19.827
26088
16699
+24 +75
33.377
29443
18847
+26 +79
25.209
33169
21232