What is the minimum gas pipe testing time required for a residential single-family dwelling unit?

In residential installations, the minimum gas pipe testing time required for a single-family dwelling unit is indeed 10 minutes. This duration is established to ensure the integrity and safety of the gas piping system. A 10-minute testing period allows for an adequate assessment of the system for any potential leaks, as it enables pressure changes to be monitored effectively.

During this testing, the system should be checked under pressure, typically at 1.5 times the maximum operating pressure, but not exceeding 10 psig. The duration is designed to provide assurance that the gas lines can hold pressure without leakage, which is critical for ensuring safety in the home.

Shorter testing times may not provide enough information to detect smaller leaks, which could lead to safety hazards. Thus, the 10-minute requirement serves as a standard to safeguard against potential gas leaks in residential spaces.