How does NFPA 13 classify fire hazards for sprinkler protection?
A. NFPA 13 differentiates between fire hazards in storage and non-storage facilities. Fire hazards, for non-storage operations are normally classified according to the occupancy hazard classifications (Section 2-1). NFPA 13 addresses five major occupancies: Light Hazard, Ordinary Hazard Group 1, Ordinary Hazard Group 2, Extra Hazard Group 1, Extra Hazard Group 2. Fire Hazards in storage facilities are normally classified according to the commodity classifications (Section 2-2). NFPA 13 addresses five basic commodity classifications, including Classes I, II, III, and IV, and plastics. Class I commodities represent the least severe fire hazard, and plastics represent the most severe.
