15-28-310 Arrangement of storage.
   The storage and handling of ammonium nitrate shall comply with the following requirements:
   (1)   Each storage pile of bags or other authorized packages and containers of such materials shall not exceed 15 feet in height, 20 feet in width and 50 feet in length. Such pile units shall be separated by a clear space of not less than 36 inches in width from the base to the top of the piles, serving as cross aisles. At least one service or main aisle in the storage area shall be not less than four feet in width. A clearance of not less than 30 inches shall be maintained from building walls and partitions and of not less than 36 inches from ceilings or roof structural members with a minimum of 18 inches from sprinkler deflectors.
   (2)   Ammonium nitrate storage areas shall be separated by a space of 30 feet or by a tight noncombustible partition having a fire-resistive rating of not less than one hour, from the storage of organic chemicals, corrosive liquids, compressed gases, flammable liquids and combustible materials or other contaminating substances such as sulphur, coal, flour and metallic power such as zinc, copper and magnesium where storage of such materials is permitted with ammonium nitrate.
   (3)   The storage of ammonium nitrate, coated or mixed with organic anticaking materials except blasting agents permitted in Chapter 15-20 shall not be permitted in the city.
(Prior code §  92-26)