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15-28-300  Storage requirements.
   Quantities of ammonium nitrate or ammonium nitrate fertilizer, having no organic coating, in the form of crystals, flakes, grains or pills including fertilizer grade, dynamite grade, nitrous oxide grade and technical grade ammonium and ammonium nitrate phosphate (containing 60 percent or more ammonium nitrate by weight) or more than 50 tons total weight shall be stored only in Type IA, IB, IC buildings.
   Type IIIA, IIIB and IIIC may be used if such building is equipped with a complete system of automatic sprinklers as directed in Chapter 15-16 this Code.
   The maximum height and areas of such buildings shall be in accordance with Chapter 13-48 for moderate hazard storage buildings. Quantities in excess of 2,500 tons shall be stored only in buildings of Type IA, IB, IC or II construction and such buildings shall also have a complete installation of automatic sprinklers. All such buildings shall have ventilation in accordance with the requirements of Section 15-28-260. The floor of such buildings shall be constructed of noncombustible materials having fire-resistive rating required for that type building.
   There shall be no connections to the city sewer system nor shall there be allowed any drain, trap, basement pit into which any molten ammonium nitrate could flow and be confined in the event of a fire. The storage of ammonium nitrate, coated or mixed with organic anticaking materials except blasting agents permitted in Chapter 15-20, shall not be permitted.
(Prior code §  92-25)