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38.6.3.2.1 of NFPA 38 – Marijuana Growing, Processing, or Extraction Facilities

Question asked by mtrzcinski on Aug 25, 2020
Latest reply on Sep 1, 2020 by chiefns830

38.6.3.2.1 Extraction and post oil processing operations including dispensing of flammable liquids between containers, shall be performed in one of the following locations:

  1. A chemical fume hood in accordance with Chapter 7 of NFPA 45
  2. 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?

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