Where:
VOC(i)(A) = The weighted average VOC content in units of percent VOC by volume of the volatile content of all coatings and inks (minus water and exempt compounds) used each day;
i = Subscript denoting a specific coating or ink, as applied;
n = The number of different coatings and/or inks, as applied, each day on a printing press;
Li = The liquid volume of each coating or ink, as applied, used that day in units of liters (L) (gallons [gal]);
Vsi = The volume fraction of solids in each coating or ink, as applied; and
VVOCi = The volume fraction of VOC in each coating or ink, as applied.
Where:
VOC(i)(B) = The weighted average VOC content in units of percent VOC by volume of the volatile content of all coatings and inks used each day;
i = Subscript denoting a specific coating or ink, as applied;
n = The number of different coatings and/or inks, as applied, each day on each printing press;
Li = The liquid volume of each coating or ink, as applied, in units of L (gal);
VVOCi = The volume fraction of VOC in each coating or ink, as applied; and
VVCi = The volume fraction of volatile matter in each coating or ink, as applied.
Where:
VOC(i)(C) = The weighted average VOC content in units of mass of VOC per mass of coating solids;
i = Subscript denoting a specific coating or ink, as applied;
n = The number of different coatings and/or inks, as applied, each day on a printing press;
Li = The liquid volume of each coating or ink, as applied, used on the day in units of L (gal);
Di = The density of each coating or ink, as applied, in units of mass of coating or ink per unit volume of coating or ink;
WVOCi = The weight fraction of VOC in each coating or ink, as applied; and
Wsi = The weight fraction of solids in each coating or ink, as applied.
Where:
EP = Total potential emissions of VOC from one flexographic or rotogravure printing press in units of kilograms per year (kg/yr) (pounds per year [lb/yr]).
A = Weight of VOC per volume of solids of the coating or ink with the highest VOC content, as applied, each year on the printing press in units of kilograms VOC per liter (kg VOC/L) (pounds of VOC per gallon [lb VOC/gal]) of coating or ink solids.
B = Total volume of solids for all coatings and inks that can potentially be applied each year on the printing press in units of liters per year (L/yr) (gallons per year [gal/yr]). The instrument and/or method by which the owner or operator accurately measured or calculated the volume of coating and ink solids applied and the amount that can potentially be applied each year on the printing press shall be described in the certification to the Secretary.
W. Va. Code R. § 45-21-34