from the IFC
3404.3.2 Liquid storage cabinets. Where other sections of
this code require that liquid containers be stored in storage
cabinets, such cabinets and storage shall be in accordance
with Sections 3404.3.2.1 through 3404.3.2.3.
3404.3.2.1 Design and construction of storage cabinets.
Design and construction of liquid storage cabinets
shall be in accordance with this section.
3404.3.2.1.1 Materials. Cabinets shall be listed in accordance
with UL 1275, or constructed of approved
wood or metal in accordance with the following:
1. Unlisted metal cabinets shall be constructed of
steel having a thickness of not less than 0.044
inch (1.12mm)(18 gage). The cabinet, including
the door, shall be double walled with 1.5-inch
(38 mm) airspace between the walls. Joints shall
be riveted or welded and shall be tight fitting.
2. Unlisted wooden cabinets, including doors,
shall be constructed of not less than 1-inch (25
mm) exterior grade plywood. Joints shall be
rabbeted and shall be fastened in two directions
with wood screws. Door hinges shall be of steel
or brass. Cabinets shall be painted with an intumescent-
type paint.
3404.3.2.1.2 Labeling. Cabinets shall be provided
with a conspicuous label in red letters on contrasting
background which reads: FLAMMABLE—KEEP
FIRE AWAY.
3404.3.2.1.3 Doors. Doors shall be well fitted,
self-closing and equipped with a three-point latch.
3404.3.2.1.4 Bottom. The bottom of the cabinet shall
be liquid tight to a height of at least 2 inches (51 mm).
3404.3.2.2 Capacity. The combined total quantity of liquids
in a cabinet shall not exceed 120 gallons (454 L).
3404.3.2.3 Number of storage cabinets. Not more than
three storage cabinets shall be located in a single fire
area, except that in a Group F occupancy, additional cabinets
are allowed to be located in the same fire area if the
additional cabinets (or groups of up to three cabinets) are
separated from other cabinets or
check this also:::::::::
http://ulstandardsinfonet.ul.com/scopes/scopes.asp?fn=1275.html
the 1275 basicly is how they have to build it to meet 1275