The equation found in 40 CFR 261.1034(c)(1)(iv)(A), 2015 ed. is adopted and incorporated by reference
Where:
E h= Total organic mass flow rate, kg/h;
Q 2sd= Volumetric flow rate of gases entering or exiting control device, as determined by Method 2, dscm/h;
n = Number of organic compounds in the vent gas;
C i= Organic concentration in ppm, dry basis, of compound i in the vent gas, as determined by Method 18;
MW i= Molecular weight of organic compound i in the vent gas, kg/kg-mol;
0.0416 = Conversion factor for molar volume, kg-mol/m3 (at 293 K and 760 mm Hg);
10 -6 = Conversion from ppm
E h= (Q)(C)(MW)(0.0416)(10 -6)
Where:
E h= Total organic mass flow rate, kg/h;
Q = Volumetric flow rate of gases entering or exiting control device, as determined by Method 2, dscm/h;
C = Organic concentration in ppm, dry basis, as determined by Method 25A;
MW = Molecular weight of propane, 44;
0.0416 = Conversion factor for molar volume, kg-mol/m3 (at 293 K and 760 mm Hg);
10 -6 = Conversion from ppm.
E A=(E h)(H)
Where:
E A=Total organic mass emission rate, kg/y;
E h=Total organic mass flow rate for the process vent, kg/h;
H=Total annual hours of operations for the affected unit, h.
Utah Admin. Code R315-261-1034