Where:
T = Total VOC emissions from coating lines and operations at the facility before the application of capture systems and control devices in units of kg/day (lb/day);
n = Number of different coatings applied on each coating line or each operation at the facility;
i = Subscript denoting an individual coating;
Ai = Mass of VOC per volume of coating (i) (minus water and exempt compounds), as applied, used at the facility in units of kilograms VOC per liter (kg VOC/L) (pounds VOC per gallon [lb VOC/gal]); and
Bi = Volume of coating (i) (minus water and exempt compounds), as applied, used at the facility in units of liters per day (L/day) (gallons per day [gal/day]). The instrument or method by which the owner or operator accurately measured or calculated the volume of each coating, as applied, used shall be described in the certification to the Secretary.
W. Va. Code R. § 45-21-4