| Abstract |
This protocol determines the daily VOC emission rate (pounds of VOC per gallon of coating solids deposited) for automobile and light-duty truck primer-surfacer and topcoat operations. The protocol considers the following factors: Daily usage of each coating; VOC generated per gallon of each coating used; Volume solids content of each coating used; Daily weighted transfer efficiency of each coating used; and Daily weighted exhaust control credit for spray booth, flash-off and bake oven. The protocol describes how to determine each of these factors, including the necessary testing and recordkeeping. The protocol is designed for use in cases where: (1) the primer-surfacer or topcoat emission limit is stated in units of pounds of VOC per gallon of solids deposited, (2) compliance is to be demonstrated for each day, (3) the entire primer-surfacer coating operation (i.e., all spray booths, flash-off areas and bake ovens where primer-surfacers and related materials are applied, dried, and cured) is treated as a single entity, and (4) the entire topcoat operation (i.e., all spray booths, flash-off areas and bake ovens where topcoats and related materials are applied, dried, and cured; except final off-line repair) is treated as a single entity. The protocol may also be used in cases where the entire primer-surfacer operation and the entire topcoat operation (i.e., all spray booths, flash-off areas and bake ovens where primer-surfacer, topcoat, and related materials are applied, dried, and cured) is treated as a single entity. |
