What should the final connection between new piping and an existing system be tested with?

The final connection between new piping and an existing system should be tested with the system gas and a leak detectant. This method is essential for ensuring the integrity and safety of the gas system after installation or modification. By using the system gas, it directly evaluates how the system functions under normal operating conditions, allowing for the identification of any potential leaks that may compromise safety.

Leak detectants help in providing a clear indication of any gas leaks because they typically bubble or change appearance when escaping gas comes into contact with them. This is particularly critical in medical gas systems, where the safety and reliability of the gas being transported are of utmost importance.

Using just water would not be appropriate for testing gas systems, as it doesn’t provide an accurate representation of gas behavior or potential leaks. Similarly, compressed air is not suitable for testing medical gas pipelines since it can introduce other contaminants and may not reflect the operating conditions of the system. A nitrogen flush and fuel gas testing would also not be advisable, as nitrogen and fuel gases do not represent the operational characteristics of medical gases and could present their own safety risks.

In summary, testing with the system gas and a leak detectant ensures a thorough evaluation of the connection’s integrity and helps prevent accidents due to undetected leaks in