([SIGMA]LdjDdj will be 0 if no VOC-solvent is added to the coatings, as received)
where:
n is the number of different coatings used during the calendar month, and
m is the number of different VOC-solvents added to coatings during the calendar month.
where n is the number of different coatings used during the calendar month.
Table 1-Transfer Efficiencies
Application method | Transfer efficiency (Tk) |
Air-atomized spray | 0.40 |
Airless spray | 0.45 |
Manual electrostatic spray | 0.60 |
Flow coat | 0.85 |
Dip coat | 0.85 |
Nonrotational automatic electrostatic spray | 0.85 |
Rotating head automatic electrostatic spray | 0.90 |
Electrodeposition | 0.95 |
Where more than one application method is used within a single surface coating operation, the owner or operator shall determine the composition and volume of each coating applied by each method through a means acceptable to the Administrator and compute the weighted average transfer efficiency by the following equation:
where:
n is the number of coatings (or input streams) used, and
m is the number of application methods used.
where:
n is the number of gas streams entering the control device
p is the number of gas streams emitted directly to the atmosphere.
where:
n is the number of gas streams entering the control device, and
m is the number of gas streams leaving the control device and entering the atmosphere.
R = EF (8)
N = G(1-R) (9)
Mr = Lr Dr (10)
40 C.F.R. §60.453