Computation Of Concentrations - Thermo Scientific 43iQ Instruction Manual

Computation of
Concentrations
43iQ Instruction Manual
Figure 9–13. Installing Glass Tube pt 4
10. Latch oven cover handles.
The computation of SO
information. Note that is assumed that all devices are properly calibrated
and that all flows are corrected to 25 °C and 1 atm.
Permeation Tube:
Where:
R = permeation rate in ng/min
Q = flow rate of gas (scc/min) into the charcoal scrubber during span mode
0
K = constant for the specific permeant = 24.45 / MW
MW = molecular weight
output level is shown in the following
2
(R)
Output (ppm) =
Q
(K)
o
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