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Spray Room vs Spray Booth: When to use the requirements for one or the other?
I am working on a flammable spray application and was wondering if anyone has a any good metrics for when to determine if an enclosure is a "spray room" vs a "spray booth". I am working on a 40-ft by 10-ft enclosure which I would argue is a room, but NFPA 33 provides discernable direction even with Annex sections, especially with "this definition is not intended to limit the term spray booth to any particular design." This shows up in A.3.3.19. From NFPA 33 2021: Spray Booth 3.3.19 "A power-ventilated enclosure for a spray application operation or process that confines and limits the escape of the material being sprayed, including vapors, mists, dusts, and residues that are produced by the spraying operation and conducts or directs these materials to an exhaust system." Annex A.3.3.19: "Spray booths are manufactured in a variety of forms, including automotive refinishing, downdraft, open-face, traveling, tunnel, and updraft booths. This definition is not intended to limit the term spray booth to any particular design. The entire spray booth is part of the spray area. A spray booth is not a spray room." Spray Room 3.3.20 "A power-ventilated enclosure for a spray application operation or process that confines and limits the escape of the material being sprayed, including vapors, mists, dusts, and residues that are produced by the spraying operation and conducts or directs these materials to an exhaust system." Annex A.3.3.20 "The entire spray room is considered part of the spray area. A spray booth is not a spray room." Based on definitions there are no official metrics to determine when to use either definition. Is this perhaps a constructed room vs a manufactured structure? Thanks in advance. Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe
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We have been asked if a 20+ year old wet pipe sprinkler system we installed into a paint application room is the correct method of protection for a specific paint product that is currently being used.
The MSDS sheets for a few of the products they now use indicate protection with dry chemical, foam, or water fog. I have been told that the MSDS sheets typically refer to the product as its being stored and not necessarily as its being applied. The storage is not happening in this room of course, but in approved fire-rated storage cabinets outside the area. None of the typical requirements for alternate protection are met per NFPA 33. Basically other than the product data sheets, this is a run of the mill paint application area. Nothing automated or fancy. Anyone have any experience with a similar situation? Sent in anonymously for discussion. Discuss This | Submit Your Question | Subscribe |
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