Which of the following best describes the goal of a tightness test?

The goal of a tightness test is to confirm that tanks do not have leaks. This testing procedure is critical in the management of fuel storage tanks, as it ensures the integrity of the tank system and helps prevent environmental contamination. A tightness test measures the ability of the tank to contain its contents without any leakage, which is vital for safety and compliance with environmental regulations. This assessment involves monitoring the tank for any pressure or volume changes that would indicate a leak.

The other choices address different objectives that do not relate directly to the primary purpose of a tightness test. Replacing old tanks does not provide information about their current condition; examining fuel quality pertains to the assessment of the product stored rather than the tank itself; and cleaning the interiors of tanks involves maintenance tasks that are separate from leak detection. Thus, confirming the absence of leaks is indeed the primary goal of a tightness test.