15-24-510 Room ventilation.

   All rooms in which Class I flammable liquids are used in open vats, pans or other vessels, or in which any flammable liquids are heated or otherwise treated in such a manner as to produce flammable vapor, shall be ventilated as hereinafter provided. There shall be a vent opening in the wall at the floorline near each open receptacle and each heating device containing such liquid. Such vent openings shall have a net cross- sectional area of not less than 32 square inches and shall be protected with one-half-inch mesh No. 16 wire. When such vent openings are not located in the outside wall of the building or room, there shall be a noncombustible vent flue built into the wall or floor or securely fastened thereto and so arranged as not to be subject to mechanical injury. Such vent flue shall conduct to and pass through an exhaust fan, which shall run continuously while the room is in use, and which shall be sufficient capacity to change the air in the room completely in not more than five minutes. All discharge outlets of such vent flues shall be provided with noncorrodible wire screen and shall be so located that they are not nearer than ten feet vertically or five feet horizontally from any door or window opening.

(Prior code §  129.1-43)

15-24-520 Kettles, vats, vessels.

   Kettles, vats, saturators and other vessels used in manufacturing processes and which have a capacity of more than five gallons of flammable liquids shall not be located within five feet of combustible material, nor within five feet of any exit. All combustible floors within ten feet of such containers shall be protected with a noncombustible covering. All kettles and other open containers shall be provided with substantial covers arranged to close automatically by heat-actuated devices, or shall be provided with equipment to flood such tank with standard foam-solution fire extinguisher, or a standard dry-powder fire extinguisher, or an approved carbon dioxide extinguisher as defined in Article II of Chapter 15-16 of this Code.

(Prior code §  129.1-44)

15-24-530 Distilling and condensing plants.

   (a)   Except as otherwise provided in Section 15-24-540 or in subsection (b) of this section, all distilling and condensing plants shall have a clearance of not less than 300 feet in reference to any building or lot line.

   (b)   Buildings, or parts thereof, used to distill ethyl alcohol, either as a primary or auxiliary use, shall be classified as a Class G-2, moderate hazard industrial unit, and shall have either (1) a clearance of not less than 300 feet in reference to any building or lot line, or (2) at least a four-hour fire-resistive separation to all other uses. In addition, all flammable liquid storage or any dust producing operations shall comply with all applicable city requirements.

(Prior code § 129.1-45)(Amend Coun. J. 10-28-15, p. 11951, Art. X, § 14)

15-24-540 Reclaiming systems.

   Nothing in the building provisions of this Code shall be construed prohibiting the use of flammable liquid reclaimers or recovery systems, the capacity of which is less than ten gallons per hour and which equipment shall not heat the liquid above 500 degrees Fahrenheit, and which shall have no open flame. Such devices shall be arranged so that all gasoline or kerosene and similar vapor which are removed from the oil, shall be condensed and collected in a closed vaportight container.

(Prior code §  129.1-46)

ARTICLE VI. PAINT MIXING AND SPRAYING (15-24-550 et seq.)

15-24-550 Definitions.

   “Paint mixing room” means a room designed, intended or used for the purpose of mixing paint, varnish, lacquer, enamel or other such volatile or flammable liquid or liquid containing any volatile flammable substance in solution or suspension, during any 24-hour period.

   “Paint spraying room” means a room designed, intended or used for the purpose of spraying more than ten gallons of paints, varnish, lacquer, enamel or other such volatile or flammable liquid or liquid containing any volatile flammable substance in solution or suspension during any 24-hour period; without use of an approved spray booth.

   “Paint spraying” means the application of flammable or combustible paint, varnish, lacquer, enamel, stain or other such volatile or flammable liquid, or liquid containing any volatile flammable substance in solution or suspension applied as a spray by whatever means, in continuous or intermittent processes, where more than one gallon of such liquid is used in any 24-hour period.

   “Spray area” means any area in which dangerous quantities of flammable vapors or combustible residues, dusts or deposits are present due to the operation of spraying processes. The spray area shall include:

      (a)   The interior of spray booths;

      (b)   The interior of ducts exhausting from spraying processes;

      (c)   Any area in the direct path of spray or any area containing dangerous quantities of air- suspended combustible residue, dust, deposits, spray or vapor as a result of spraying operations.

   “Spray booth” means a specially designed enclosure constructed of noncombustible materials and otherwise complying with the requirements of this chapter and other applicable sections of this Code, in which paint-spraying operations are carried on.

(Prior code §  129.1-47)

15-24-560 Spraying restrictions.

   Spraying. Paint-spraying operations shall not be permitted in any institutional building. Paint-spraying operations shall not be permitted in any assembly, school or multiple-dwelling building except in a room designed for the purpose, protected with an approved system of automatic sprinklers and separated vertically and horizontally from other parts of the building by construction having not less than two-hour fire-resistive rating.

(Prior code §  129.1-48)