La. Admin. Code tit. 33 § III-2156
BE- a building or room enclosure that contains a process that emits VOC. If a BE is to serve as a PTE or TTE, the appropriate requirements given in 40 CFR, Part 51, Appendix M, Method 204 must be met.
Capture- the containment or recovery of emissions from a process for direction into a duct which may be exhausted through a stack or sent to a control device.
Capture Efficiency- the weight per unit time of VOC entering a capture system and delivered to a control device divided by the weight per unit time of total VOC generated by a source of VOC, expressed as a percentage.
Capture System- all equipment (including, but not limited to, hoods, ducts, fans, booths, ovens, dryers, etc.) that contains, collects and transports an air pollutant to a control device.
Control Device- equipment (such as an incinerator or carbon adsorber) used to reduce, by destruction or removal, the amount of air pollutant(s) in an air stream prior to discharge to the ambient air.
Control System- a combination of one or more capture system(s) and control devices working in concert to reduce discharges or pollutants to the ambient air.
Destruction or Removal Efficiency- the efficiency, expressed as a decimal fraction, of a control device in destroying or removing contaminants calculated as one minus the amount of VOC exiting the control device divided by the amount of VOC entering the control device.
F- the mass of VOC leaving the process as gaseous fugitive emissions.
G- the mass of VOC captured and delivered to a control device.
Gas/Gas Method- either of two methods for determining capture which rely only on gas phase measurements. One method requires construction of a temporary enclosure (TTE) to assure all would be fugitive emissions are measured while the other method uses the room or building which houses the emission source as an enclosure.
Hood- a partial enclosure or canopy for capturing and exhausting, by means of a draft, the organic vapors or other fumes rising from a coating process or other source.
L- the mass of VOC input to the process in liquid form.
Liquid/Gas Method- either of two methods for determining capture which require both gas phase and liquid phase measurements and analysis. One liquid/gas method requires construction of a temporary enclosure, the other uses the building or room which houses the facility as an enclosure.
Overall Emission Reduction Efficiency- the weight per unit time of VOC removed by a control device divided by the weight per unit time of VOC emitted by an emission source, expressed as a percentage. The overall emission reduction efficiency is the product of the capture efficiency and the control equipment destruction or removal efficiency.
PTE- a permanent total enclosure, which contains a process that emits VOC and meets the specifications given in 40 CFR, Part 51, Appendix M, Method 204, Section 6.
TTE- a temporary total enclosure which is built around a process that emits VOC and meets the specifications given in 40 CFR, Part 51, Appendix M, Method 204, Section 5.
La. Admin. Code tit. 33, § III-2156