Agilent Technologies 5977B Series Operating Manual page 54

2 Installing 7890 GC Columns
Calculation for average linear velocity
Calculation for volumetric flow rate
54
Average linear velocity (cm/s)
where:
L = Length of the column in meters
t = Retention time in seconds
Volumetric flow rate (mL/min) =
where:
D = Internal column diameter in millimeters
L = Column length in meters
t = Retention time in minutes
100 L
------------- -
=
t
2
0.785 D L
--------------------------- -
t
5977B Series MSD Operating Manual
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