No person shall use inflammable volatile liquids having a flash point of less than 110°F for the cleaning of aircraft, aircraft engines, propellers, or appliances, or for any other purpose, unless such operations are conducted in the open air or in a room specifically set aside for that purpose. Such room shall be properly fireproofed and equipped with adequate and readily accessible fire extinguishing apparatus.
('61 Code, § 3-6.45) (Ord. 44 C.S., passed 4-3-63)