Meriam Laminar Flow Elements - Manual (Page 8)

8
Table A-35600 (NBSIR 83-2652)
Humidity Correction Factor for Air = Pwet / Pdry
% Relative Humidity
°F
20% 40% 60% 80% 100%
40 .9993 .9987 .9981 .9975 .9969
50 .9990 .9981 .9973 .9964 .9955
60 .9986 .9973 .9960 .9948 .9934
70 .9981 .9962 .9944 .9925 .9907
80 .9974 .9948 .9922 .9895 .9870
90 .9964 .9928 .9892 .9855 .9818
100 .9951 .9902 .9854 .9805 .9756
0.96
0.97
0.98
0.99
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50 60 70 80 90 100 110 120 130 140 150
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Figure2: Relative humidity correction factor for air viscosity. A-35500 Kestin &
Whitelaw
10% Humidity
20% Humidity
30% Humidity
40% Humidity
50% Humidity
60% Humidity
70% Humidity
80% Humidity
90% Humidity