How should the bottom of a flammable/combustible liquid cabinet be designed?

The design of the bottom of a flammable/combustible liquid cabinet is crucial for safety and containment. It is important that the bottom be liquid tight to a height of at least 2 inches. This design feature serves as a secondary containment measure to prevent spills from escaping the cabinet in the event of an accident or leakage. By being liquid tight, it ensures that any spilled flammable liquids can be safely contained within the cabinet, reducing the risk of fire hazards and further environmental contamination.

This containment helps to facilitate the safe handling and storage of flammable substances, providing an added layer of protection for both laboratory personnel and the surrounding environment. Other designs, such as perforated bottoms or open drainage systems, would not provide the necessary containment and could potentially create additional safety hazards. Therefore, a liquid-tight bottom is essential for compliant and safe storage practices in labs dealing with flammable and combustible materials.