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velocity readings (as indicated by the meter) by the
following density correction factor:
Act Vel
Where
T = Ambient temperature in °F
P = Ambient pressure in psia
If you use metric units, the equation becomes:
Act Vel
Where
T
= Ambient temperature in °C
m
P
= Ambient pressure in kPa
m
=
.
.
Std Vel
=
.
.
Std Vel
460
.
.
460 70
273
.
.
273 211
+
T
14 7 .
+
P
+
T
1014
m
+
.
P
.
m
15
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