This section should prove of special interest to you and be helpful in selecting the particular safety container device that you need to meet a specific OSHA requirement. To make this job as easy as possible we have taken paragraphs from OSHA Safety Requirements in the CODE OF FEDERAL REGULATIONS and related them to the Protectoseal catalog product section that best satisfies these requirements.

(ii) Fire resistance. Storage cabinets shall be designed and constructed to limit the internal temperature to not more than 325°F. when subjected to 10-minute fire test using the standard time-temperature curve as set forth in Standard Methods of Fire Tests of Building Construction and Materials, NFPA 251-1969. All joints and seams shall remain tight and the door shall remain securely closed during the fire test. Cabinets shall be labeled in conspicuous lettering, "Flammable––Keep Fire Away:.

(a) Metal cabinets constructed in the following manner shall bee deemed to be in compliance. The bottom, top, door, and sides of cabinets shall be at least No. 18 gage sheet iron and doubled walled with 11/2-inch air space. Joints shall be riveted, welded or made tight by some equally effective means. The door shall be provided with a three point lock, and the door sill shall be raised at least 2 inches above the bottom of the cabinet.

1926.152(b)(2)(ii&iii)
(b) Indoor storage of flammable and combustible liquids. (2) Quantities of flammable and combustible liquid in excess of 25 gallons shall be stored in an acceptable or approved in cabinet meeting the following requirements.
(ii) Approved metal storage cabinets will be acceptable.
(iii) Cabinets shall be labeled in conspicuous lettering, "Flammable––Keep Fire Away".