(a) Generally. All gasoline blow torches and plumbers’ furnaces shall be constructed, maintained and used in accordance with NFPA #393, Recommended Good Practice for the Construction, Maintenance and Use of Gasoline Blow Torches and Plumbers’ Furnaces.
(b) Capacity. The liquid capacity of gasoline blow torches shall not exceed two (2) quarts and that of plumbers’ furnaces, two (2) gallons, exclusive of the required air space above the liquid. Tanks for such torches and plumbers’ furnaces shall be constructed to withstand a working pressure of twenty-five (25) pounds per square inch.
(c) Ventilation. Adequate ventilation shall be provided where gasoline blow torches are used.
(d) Filling. Gasoline blow torches or plumbers’ furnaces shall not be filled inside of buildings. (1975 L.M.C., ch 23, § 1.)