What is the purpose of a pressure test?

The purpose of a pressure test is to verify the gas tight integrity of gas piping. This process is essential in ensuring that the piping system does not have leaks that could lead to dangerous situations such as gas escapes, which are a significant safety hazard.

During a pressure test, the piping is subjected to a specified pressure that exceeds normal operational pressures. This test checks not only the joints and connections but also the entire length of the piping for any weak points or faults. If the pressure remains stable over the test duration, it indicates that the system is indeed gas-tight, ensuring safety in the system’s operation.

The other options, while they touch on aspects that relate to gas systems, do not encapsulate the primary purpose of a pressure test. Checking aesthetic quality, measuring flow rates, and determining corrosion levels serve different functions and are not the primary focus of performing a pressure test.