5003.8.7.1 Construction.
FC § 5003.8.7.1
All interior surfaces of such cabinets shall be treated, coated or constructed of materials that are nonreactive with the hazardous material stored. Cabinets shall either be listed in accordance with UL 1275 as suitable for the intended storage or constructed in accordance with the following: 1. Cabinets shall be of steel having a thickness of not less than 0.0478 inch (1.2 mm) (No. 18 gauge). The cabinet, including the door, shall be double walled with a 1 1/2-inch (38 mm) airspace between the walls. Joints shall be riveted or welded and shall be tight fitting. Doors shall be well fitted, self-closing and equipped with a self-latching device.
2.The bottoms of cabinets utilized for the storage of liquids shall be liquid-tight to a minimum height of 2 inches (51 mm).













