HOTMIX ASPHALT (HMA) PLANT AIR PERMIT …
Hotmix Asphalt Plant Application Advice Page 5 Revised 4/3/2012 to the unit of weight; 7,000 grains equals one pound. The plant vendor should supply stack flows and moisture content (normally 10% if a baghouse is used and 20% if a wet scrubber is used). For a hypothetical plant with a baghouse and stack flow of 40,000 ACFM at 250oF, the flow