What does the term “tightness testing” refer to?

Tightness testing is a crucial procedure in oil tank maintenance and safety that evaluates the integrity of the tank to ensure it is not leaking. This testing is essential for preventing environmental contamination and ensuring compliance with safety regulations. During tightness testing, the tank is subjected to pressure or vacuum conditions to identify any potential leaks. The procedure helps confirm that the tank can safely hold oil without any risk of spillage into the surrounding area, which could lead to environmental hazards and financial liabilities. Regular tightness testing is also a key practice for ensuring the reliability and safety of oil storage systems.

The other options refer to different aspects of oil management and maintenance. Cleaning oil tanks focuses on removing sludge or contaminants, measuring oil consumption pertains to tracking how much oil is used over time, and maintaining heating systems involves ensuring that the equipment functions properly but does not specifically address tank integrity.