What is the minimum test duration required for gas lines at a pressure of at least 10 psi?

The minimum test duration required for gas lines at a pressure of at least 10 psi is 15 minutes. This duration is specified in plumbing codes and standards to ensure that the system is tested adequately for leaks before being put into service. A 15-minute test provides sufficient time to allow for observation of any pressure drop that would indicate a leak in the gas line.

Testing for gas lines is critical because even small leaks can pose significant safety hazards, including fire risks and potential health impacts.

While other durations may seem reasonable, they do not meet the established standards for testing at this pressure level. A shorter test could possibly fail to reveal slower leaks, emphasizing the importance of compliance with the 15-minute duration to ensure safety and reliability in the gas system.