Which of the following is NOT a reason for filling a container with water or inert gas before abandonment?

Filling a container with water or inert gas before abandonment serves multiple safety purposes, and the aim is to ensure that the container does not pose risks to both the environment and human safety. One of the primary reasons is to prevent contamination. This involves making sure that any remaining gases or liquids in the container cannot leak and interact with the surrounding environment, which is suitable for preventing environmental harm.

Another important reason for this practice is to minimize the risk of explosion. Containers, especially those that previously held volatile substances like propane, can become hazardous if left empty and exposed to heat or open flames. By filling them with water or an inert gas, the potential for explosive reactions is significantly reduced.

Additionally, enhancing structural integrity is crucial, particularly if the container will be exposed to environmental elements over an extended period. Filling the container with water or an inert gas helps maintain its shape and prevents structural failure, which could lead to leaks or other hazardous situations.

While retrieving a container might be a consideration in certain scenarios, ensuring ease of retrieval is not a primary reason for filling the container with water or inert gas. The main focus is on safety and environmental protection, rather than the logistics of retrieval, making this the correct answer.