13-112-140 Rooms prohibited in basements.

   None of the following herein described hazardous use units:

   Asphalt, tar, pitch, resin or paraffin heating room;

   Corrosive liquid storage room;

   Dip tanks having a capacity or liquid surface area in excess of the following:

 

	Capacity	Liquid Surface Area
Class I	10 gallons	4 square feet
Class II	60 gallons	10 square feet
Class III	125 gallons	15 square feet

 

   Drying room for any article or material which will give off explosive or flammable vapors during the drying process;

   Flammable liquids storage (except as provided in Section 15-24-270 of this Code);

   Fume or flammable compressed gas;

   Grinding or dust producing;

   Hazardous chemical;

   Highly flammable material storage;

   Highly toxic materials;

   Japanning or enameling;

   Nitrocellulose products;

   Paint spraying or mixing except for water base paint;

   Picker or shredder;

   Standard fireproof vault;

   Sulphur storage;

shall be located in any story below grade in any building hereafter designed, erected, altered or converted for any purpose; provided, however, that one or more rooms built for no purpose other than that of the operation of water purification plants or a refrigerating unit may be located in any basement of any building.

(Prior code § 60-14)

13-112-150 Lot occupancy.

   The location of any hazardous use unit shall conform to such regulations and limitations of other provisions of this Code applicable thereto and more restrictive than the building provisions of this Code.

(Prior code § 60-15; Amend Coun. J. 11-8-12, p. 38872, § 228)

13-112-160 Court requirements.

   Every court which is necessary in order to obtain windows or other openings for required natural lighting and natural ventilation shall be made to conform with the provisions of this Code for such court in an industrial or storage unit, except as otherwise provided in this chapter.

(Prior code § 60-16)

13-112-170 Ventilation.

   The requirements of Chapter 18-28, relating to windows and ventilation in an industrial or storage unit shall apply to a hazardous use unit, except as otherwise provided by Chapters 15-24, 15-26 and 15-28 of this Code.

(Prior code § 60-17; Amend Coun. J. 6-14-95, p. 2841; Amend Coun. J. 11-9-16, p. 36266, § 24)

13-112-180 Fire doors.

   Every interior doorway from any room or part of a hazardous use air unit, which is required to have an enclosure of one hour fire resistive or more fire resistive construction, shall have a fire door as provided by Chapter 15-12 for such an enclosure, except as provided in Chapters 15-24, 15-26 and 15-28.

(Prior code § 60-18; Amend Coun. J. 6-14-95, p. 2841; Amend Coun. J. 11-9-16, p. 36266, § 24)

13-112-190 Equipment.

   The requirements of this Code relating to equipment in an industrial or storage unit shall apply to a hazardous use unit, except as otherwise provided in Chapters 15-24, 15-26 and 15-28 of this Code.

(Prior code § 60-19; Amend Coun. J. 6-14-95, p. 2841; Amend Coun. J. 11-9-16, p. 36266, § 24)

13-112-200 Conveyors and ducts.

   Every conveyor or duct between any hazardous use unit and any other building, or any other room in the same building, shall have an automatic closing noncombustible damper at each opening through any required fire separation, except as otherwise permitted under Section 15-24-850. Every such damper for a conveyor shall meet the requirements of Section 15-28-1190 of this Code.

(Prior code § 60-20)

13-112-210 Heating.

   No direct-gas-fired makeup-air heater may be located in any hazardous use room, nor may the discharge from a direct-gas-fired makeup-air heater be directed into a hazardous use room unless the unit shall be designed to insure that flow velocity at the outlet of the unit can never fall below 200 feet per minute, in order that there can be no possibility of backflow of air from the room.

(Prior code § 60-21)