Conversion Between Standard Flow (SCFM) and Actual Flow (ACFM)

             
   
             
  ACFM to SCFM          
  Insert flow
ACFM      
  Insert pressure
inches Hg (negative for vacuum)
  (pressure equivalents) inches H2O psig  
  Insert air temperature
°F      
  Insert altitude
feet      
             
  Flow rate =
SCFM      
             
             
  SCFM to ACFM          
  Insert flow
SCFM      
  Insert pressure
inches Hg (negative for vacuum)
  Insert air temperature
°F      
  Insert altitude
feet      
             
  Flow rate=
ACFM      
             
  Insert stack ID
Inches      
             
  Stack velocity=
feet per minute  
             
             
  rev 12-14-11