NR 661.1034(3)(a)2.2. Method 18 or Method 25A in appendix A of 40 CFR part 60, incorporated by reference in s. NR 660.11, for organic content. If Method 25A is used, the organic HAP used as the calibration gas shall be the single organic HAP representing the largest percent by volume of the emissions. The use of Method 25A is acceptable if the response from the high-level calibration gas is at least 20 times the standard deviation of the response from the zero calibration gas when the instrument is zeroed on the most sensitive scale.
NR 661.1034(3)(a)3.3. Each performance test shall consist of 3 separate runs. Each run shall be conducted for at least 1 hour under the conditions that exist when the hazardous secondary material management unit is operating at the highest load or capacity level reasonably expected to occur. For the purpose of determining total organic compound concentrations and mass flow rates, the average of results of all runs shall apply. The average shall be computed on a time-weighted basis.
NR 661.1034(3)(a)4.4. Total organic mass flow rates shall be determined by one of the following equations:
NR 661.1034(3)(a)4.a.a. For sources utilizing Method 18.
Where:
Eh= Total organic mass flow rate, kg/h
Q2sd= 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
Ci= Organic concentration in ppm, dry basis, of compound i in the vent gas, as determined by Method 18
MWi= Molecular weight of organic compound i in the vent gas, kg/kg-mol
0.0416 = Conversion factor for molar volume, kg-mol/m3 (@293 K and 760 mm Hg)
10-6 = Conversion from ppm
NR 661.1034(3)(a)4.b.b. For sources utilizing Method 25A.
Where:
Eh= 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 (@293 K and 760 mm Hg)
10-= Conversion from ppm.
NR 661.1034(3)(a)5.5. The annual total organic emission rate shall be determined by the following equation:
Where:
E= Total organic mass emission rate, kg/y
E= Total organic mass flow rate for the process vent, kg/h
H = Total annual hours of operations for the affected unit, h
NR 661.1034(3)(a)6.6. Total organic emissions from all affected process vents at the facility shall be determined by summing the hourly total organic mass emission rates, Eh, as determined in subd. 4., and by summing the annual total organic mass emission rates, EA, as determined in subd. 5., for all affected process vents at the facility.