- ll - KIf the ‘operation(s) vented' is a dryer, and the final collector is preceded by a primary cyclone please complete the below Cyclone Data Sheet. CYCLONE DATA SHEET Not applicable since all dryer dust collectors are final collectors. Number of Dust Collector that Cyclone precedes (From Dust Collector Data Sheet) Cyclone Type (single, twin, multiple, other) Volume ACFM SCFM Operating Temperature (°F) Dust Loading In (grains/ACF) Dust Loading Out (grains/ACF) Dust Recovered (Tons per day) Efficiency (2) Operating Pressure Differential (Inches Water Gauge) ACFM MW Actual cubic feet per minute at operating conditions ii SCFM = Standard cubic feet per minute at 70°F and 29.92 inches mercury