Flammable Liquid Storage Cabinet
Is a flammable liquid cabinet required in every case?
No, the need depends on quantity, class of liquid, occupancy, and governing code. However, once cabinet storage is used, the cabinet must meet the applicable fire-code standard, such as BC Fire Code 4.2.10.
Does a cabinet need to be UL/ULC listed in British Columbia?
WorkSafeBC's regulation recognizes a cabinet bearing a UL or ULC approval label for this purpose, or one that otherwise meets BC Fire Code 4.2.10.
Is cabinet venting recommended?
Not as a casual shop modification. The BC rule states that if vented, the vent must be a steel pipe at least 5 cm (2 in.) in diameter connected directly outdoors, making venting regulated, not optional DIY practice.
A flammable liquid storage cabinet is an approved, fire-resisting cabinet designed to store flammable and combustible liquids in closed containers, providing temporary fire protection and isolating vapors from ignition sources. In British Columbia, it must bear a UL or ULC approval label or meet BC Fire Code subsection 4.2.10, with a maximum capacity of 500 L.
On a Canadian shop floor, these cabinets are used to store working quantities of flammable liquids away from immediate processing areas, with containers kept closed. They must be placed away from ignition sources and high-heat equipment, and the top should remain uncluttered to avoid increasing fire load. If vented, a steel pipe at least 5 cm in diameter must connect directly outdoors. Cabinets are not substitutes for bulk storage rooms; they are containment-and-fire-delay devices for temporary protection, as per CCOHS and BC Fire Code guidance.
Overfilling the cabinet beyond the 500 L maximum per cabinet in BC, violating fire code limits.
Improper venting or field modifications, such as drilling holes or using non-steel pipes, which fails the BC requirement for a steel pipe at least 5 cm in diameter connected directly outdoors.
Using the cabinet as general storage for tools, rags, or incompatible chemicals, which undermines its fire-protection purpose and creates secondary hazards.