2-15-7 FIRE HAZARD.
   Solid substance ranging from dry, active burning to intense burning may be stored, used or manufactured only within a completely enclosed walls and protected throughout by an automatic fire extinguishing system.
   The storage, utilization or manufacture of flammable liquids or materials which produce flammable vapors or gases shall be permitted in accordance with the rules and regulation of the State Fire Marshal’s office, stating that the plans and specifications for light and heavy industrial use complies with the rules and regulations of the State Fire Marshal, shall accompany the application for an improvement location permit.
   For the purpose of this section, the term FREE BURNING shall mean a rate of combustion described by a substance that burns activity and easily supports combustion, and INTENSE BURNING shall mean a rate of combustion described by a substance that burns with a high degree of activity and is consumed rapidly.