The subsection is written as follows:
184.108.40.206.1 Extraction and post oil processing operations including dispensing of flammable liquids between containers, shall be performed in one of the following locations:
- A chemical fume hood in accordance with Chapter 7 of NFPA 45
- An approved exhaust system installed in accordance with NFPA 91 or the mechanical code
Per NFPA 70 - subsection 500.5(2), a closed-loop extraction system using flammable liquids would likely need to be installed in a Class 1, Division 2 location.
Does the use of chemical fume hoods above any extraction/ processing operations exempt the space from requiring a Class 1, Division 2 classification? Can this equipment be used in an unclassified space as long as chemical fume hoods are used? Could this extraction/ processing equipment, if not identified for Class 1, Division 2 locations, still be installed in a Class 1, Division 2 space if a fume hood is used?