What must be done before a new DOT container may be filled?

Before a new DOT container may be filled, it is necessary to purge the container. Purging removes any contaminants or residual air from the container that could potentially react with the liquefied petroleum gas (LPG) when it is introduced. This process ensures that only the intended gas is inside the container, preventing chemical reactions, product contamination, or safety hazards during the filling and storage processes.

While inspecting for damage is important, it is typically a part of regular maintenance and safety checks rather than a specific prerequisite for filling a new container. Checking for leaks is also vital for safety, but it comes into play after the container has been filled. Weighing the container serves a purpose, often related to ensuring that it does not exceed weight capacities, but purging is a direct requirement prior to filling.