The maximum capacity of a standard fireproof cabinet shall be 200 pounds of nitrocellulose material or nitrocellulose product, or other high hazard material for which such vault is intended. All standard fireproof cabinets shall be constructed of metal. The bottom, top and sides shall be made of sheet metal not less than No. 18 U.S. standard gauge in thickness, and such cabinet shall be double-walled with not less than one and one- half inches air space between the double walls. All joints in the sheet metal shall be riveted or welded. All doors shall be of construction equal to the cabinet, and shall have a three point lock and self-closing device. Any standard fireproof cabinet having more than one compartment shall have a separate partition constructed of not less than No. 18 U.S. standard gauge sheet metal, double-walled, with an air space not less than one and one-half inches between the surface thereof.
(Prior code § 92-86)