Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum - View Single Post

AKADriver · 04-09-2003, 08:18 AM

That depends what flow you're trying to measure... air, right?

Air density at STP = 1.29 g/L = 0.0805 lb/cf

so 1 cfm = 0.0805 lb/min for air at STP (standard temp and pressure).

At different temperatures and pressures the density will change.

04-09-2003, 08:18 AM	#2
AKADriver Post Whore! Join Date: May 2002 Location: Springfield, VA Age: 43 Posts: 3,517 Trader Rating: (1)	That depends what flow you're trying to measure... air, right? Air density at STP = 1.29 g/L = 0.0805 lb/cf so 1 cfm = 0.0805 lb/min for air at STP (standard temp and pressure). At different temperatures and pressures the density will change.