Text For Citation: 01 Item/Group: 003A Hazard:

29 CFR 1910.106(d)(4)(i): "Construction." Inside storage rooms shall be constructed to meet the required fire-resistive rating for their use. Such construction shall comply with the test specifications set forth in Standard Methods of Fire Tests of Building Construction and Materials, NFPA 251-1969. Where an automatic sprinkler system is provided, the system shall be designed and installed in an acceptable manner. Openings to other rooms or buildings shall be provided with noncombustible liquid-tight raised sills or ramps at least 4 inches in height, or the floor in the storage area shall be at least 4 inches below the surrounding floor. Openings shall be provided with approved self-closing fire doors. The room shall be liquid-tight where the walls join the floor. A permissible alternate to the sill or ramp is an open-grated trench inside of the room which drains to a safe location. Where other portions of the building or other properties are exposed, windows shall be protected as set forth in the Standard for Fire Doors and Windows, NFPA No. 80-1968, which is incorporated by reference as specified in Sec. 1910.6, for Class E or F openings. Wood at least 1 inch nominal thickness may be used for shelving, racks, dunnage, scuffboards, floor overlay, and similar installations. On or about May 29, 2019, Wisconsin Paint and Powder Coat was using their chemical storage room for storage of flammable materials such as Acetone and Barsol A-4212. The storage room for these flammable substances did not maintain a four inch sill at the opening of the chemical room to the outer corridor or grated trench for draining fugitive flammable liquids to a safe location.