Phase ratio (β)

β= ID (microns) / 4df

Phase Ratio 

Phase Ratio

β < 100 = Volatiles Column

β ~ 250 = General Column

β > 400 = High Mass Column

Common β Values 

 

 

Film

 

 

0.10

0.25

0.50

1.0

ID

0.10

250

100

50

25

0.25

625

250

125

63

0.32

800

320

160

80

0.53

1325 

530 

265 

133 

 
<< Effect of Film Thickness

Effect of Phase Thickness >>