Air was sampled through 37mm PVC membrane filter for seven hours and thirty seven minutes. The initial air flow rate was pre-calibrated twice at 49.7 and 50.1 secnds per liter.

Question

Air was sampled through 37mm PVC membrane filter for seven hours and thirty seven minutes.  The initial air flow rate was pre-calibrated twice at 49.7 and 50.1 secnds per liter.
What volume of air at STP (25 C and 760mm Hg) was sampled in liters?
same question in cubic feet?

bobpursley · Answer

volume= flowrate*time=1liter/49.9sec * time figure time in seconds.