Fully filled portable fuel tanks must not leak when dropped on a corner from what height?

Fully filled portable fuel tanks are required to meet stringent safety standards to ensure they do not leak fuel, which could pose significant hazards such as fire risk and environmental contamination. When subjected to the test of being dropped on a corner, the height from which they can be dropped without causing leakage is critical.

The standard stipulates that fully filled portable fuel tanks must not leak when dropped from a height of 4 feet. This requirement is in place to simulate potential real-world impacts that could occur during use, transportation, or storage of these tanks. The 4-foot requirement ensures that the tanks can withstand typical accidental drops that might occur in practical scenarios without compromising their integrity.

Selecting a height lower than 4 feet would not adequately ensure the durability and reliability of the tank under more severe conditions. Therefore, 4 feet is established as the minimum height in this context to ensure safety and performance standards are met.