(a) Ammonia may be stored in outside above- ground tanks in isolated locations where the fumes from such storage or resulting from leakage will not create a nuisance or endanger life.
(b) Except as provided in subsection (a) hereof, and except as otherwise specifically permitted under conditions deemed by the Fire Chief to provide adequate safety for life and property, all poisonous, irritant, corrosive or fume hazard gases shall be stored in cylinders conforming to the specifications of the Interstate Commerce Commission and bearing the ICC label of approval, and periodically retested as required by the ICC regulations. The storage of such cylinders shall be subject to the rules and regulations of the Division of Fire, and to their direction, so as to insure safety to life and property and prevent hazards in the event of fire or fire-fighting operations.
(c) Such ICC cylinders may be stored outdoors in enclosed lots or yards in sparsely settled sections at the discretion of the Chief and under such restrictions as he or she may deem necessary.
(d) When such ICC cylinders are stored within buildings, they shall be stored at the ground floor only, in a well-ventilated room or compartment conforming to the applicable provisions of Section 3129.43(c), readily accessible from the street or from an open space leading to a street, and equipped with an approved automatic sprinkler system and with provisions so that the room or compartment may be readily flooded with water from an outside controlled source. However, storage rooms or compartments for lighter-than-air gases, such as ammonia, may be in the top stories of buildings in locations from which such gases can readily diffuse into the atmosphere and as approved by the Chief.
(e) No poisonous, irritant, corrosive or fume hazard gas, except such gases permitted in refrigerating systems, shall be used above the ground floor of any building except in a building equipped with an automatic sprinkler system or other approved automatic fire extinguishing equipment and occupied exclusively by the person, firm or corporation using such gas.
(f) No poisonous, irritant, corrosive or fume hazard gas, except such gases permitted in refrigerating systems, shall be stored or used in any Class A or Class B multiple dwelling or dwelling house or in any building, lot or enclosure located within fifty (50) feet of the nearest wall of a building occupied so as to come under the occupancy classifications of Institutional Occupancy, Educational Occupancy or Assembly Occupancy. (Note exceptions under Section 385.46(a)).
(g) The Board of Building Standards and Building Appeals may by rule prescribe the maximum quantity of any fume hazard gas to be kept upon any premises or in connection with any occupancy and the manner of storage and use thereof.
(Ord. No. 991-49. Passed 6-27-49, eff. 6-27-49)