You must use the procedures and test methods in this section to determine capture efficiency as part of the performance test required by § 63.4760 .
Where:
TVHused = Mass of liquid TVH in materials used in the coating operation during the capture efficiency test run, grams.
TVHi = Mass fraction of TVH in coating, thinner, or cleaning material, i, that is used in the coating operation during the capture efficiency test run, grams TVH per gram material.
Voli = Total volume of coating, thinner, or cleaning material, i, used in the coating operation during the capture efficiency test run, liters.
Di = Density of coating, thinner, or cleaning material, i, grams material per liter material.
n = Number of different coatings, thinners, and cleaning materials used in the coating operation during the capture efficiency test run.
Where:
CE = Capture efficiency of the emission capture system vented to the add-on control device, percent.
TVHused = Total mass of TVH liquid input used in the coating operation during the capture efficiency test run, grams.
TVHuncaptured = Total mass of TVH that is not captured by the emission capture system and that exits from the temporary total enclosure or building enclosure during the capture efficiency test run, grams, determined according to paragraph (c)(4) of this section.
Where:
CE = Capture efficiency of the emission capture system vented to the add-on control device, percent.
TVHcaptured = Total mass of TVH captured by the emission capture system as measured at the inlet to the add-on control device during the emission capture efficiency test run, grams, determined according to paragraph (d)(2) of this section.
TVHuncaptured = Total mass of TVH that is not captured by the emission capture system and that exits from the temporary total enclosure or building enclosure during the capture efficiency test run, grams, determined according to paragraph (d)(3) of this section.
40 C.F.R. §63.4765