15-28-870 Heating.

   A nitrocellulose products room shall be heated by hot water or steam, by either direct or indirect means. Any steam radiator or steam pipe, in which the working pressure exceeds five pounds per square inch, shall be located not less than four feet from the floor. Every steam or hot water radiator or pipe which is less than four feet from the floor, or which is so located that any nitrocellulose material or waste might come in contact with it, shall be protected by a guard of No. 18 U.S. gauge galvanized wire screen of one-fourth-inch mesh. Such guard shall be not less than three inches from the radiator or pipe at all points, and the tops, if any, shall slope at an angle of not less than 45 degrees from the horizontal so as to prevent the use of the tops as shelves. No floor register shall be used with any indirect system of heating, and no wall register shall have an opening nearer than six inches from the floor. Every furnace or other equipment for the heating of air in an indirect system shall be located in an independent room separated from every nitrocellulose products room by not less than two-hour fire-resistive construction.

(Prior code §  92-76)

15-28-880 Ventilation.

   Every nitrocellulose products room shall have means of natural or mechanical ventilation as required by Section 15-28-080 for hazardous chemical rooms.

(Prior code §  92-77; Amend Coun. J. 6-14-95, p. 2841)

15-28-890 Construction requirements.

   A nitrocellulose products building not more than one story above grade in height may be of any type of construction permissible for industrial or storage units under the provisions of this Code, except Type IVA or IVB construction. Types IIIB and IIIC construction shall not be used for any nitrocellulose products building exceeding two stories above grade in height. A basement shall be permitted in any nitrocellulose products building; provided, however, that no basement in such building shall be designed, constructed, altered or converted for the purposes of manufacturing, fabricating, assembling, adapting, completing or storing any nitrocellulose product.

(Prior code §  92-78)

15-28-900 Special safety clearances.

   It shall be unlawful for any person to store or manufacture nitrocellulose products in any building which is situated within 100 feet of any building occupied as a school building, hospital, institutional, or any other place of public assembly.

(Prior code §  92-79)

15-28-910 Heating products.

   Softening or heating nitrocellulose products when not done by hot water shall be done on steam or electric heaters, dies, and so forth, with at least six inches clearance to all combustible material.

(Prior code §  92-80)

15-28-920 Machinery used.

   Stamping, perforating and similar machines shall be equipped with a metal receptacle containing water for receiving waste material. Metal receptacles with automatic or self-closing covers shall be provided for nitrocellulose scraps and clippings, and said scraps and clippings shall be removed from the premises each evening and disposed of in a manner approved by the fire commissioner.

(Prior code § 92-81; Amend Coun. J. 5-18-16, p. 24131, § 160)

15-28-930 Drying boxes.

   Every box for the drying of nitrocellulose products shall be provided with one automatic sprinkler head for each 60 cubic feet of volume.

(Prior code §  92-82)

ARTICLE XVIII. NITROCELLULOSE (15-28-940 et seq.)

15-28-940 Safety clearances.

   Every nitrocellulose building shall be freestanding and isolated by a safety clearance computed at the rate of five feet per 1,000 pounds or fraction thereof of nitrocellulose manufactured or reclaimed; provided, however, that such safety clearance shall in no case be less than 50 feet; and provided further, that the requirements of this paragraph shall not apply to any buildings in which 25 pounds or less of nitrocellulose are manufactured or reclaimed during any 24-hour period.

(Prior code §  92-83)