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grain per hour per square foot per inch of mercury (0°C)
Symbol:  grain/hr-ft2-inHg (0 °C) 
Category:  Permeability 
SI Equivalent:  5.72136×10-11 kg/N-s
Dimension L-1
System:  US 
 
Notes
1 grain/hr-ft2-inHg is defined as 1 perm.
Convert     grain/hr-ft2-inHg (0 °C)  
1 grain/hr-ft2-inHg (0 °C) =
Permeability
  Symbol Unit Name
5.72136×10-11  kg/N-s  kilogram per newton per second 
perm (0 °C)  perm (0°C) 
0.995841  perm (23 °C)  perm (23°C) 
Glossary