What should be used to identify gas piping in locations other than the room of the appliance served?

In identifying gas piping, particularly in locations other than the room where the appliance is served, a yellow label is utilized. This color designation is widely recognized in the industry as the standard for indicating gas lines, helping to ensure safety and awareness. By using yellow labels, workers and emergency responders can quickly identify the presence of gas piping, which is crucial for preventing accidents and ensuring proper maintenance or emergency procedures.

The use of specific color coding for different types of piping is an important safety measure that helps distinguish between various utilities, enabling proper handling and avoiding confusion. In this case, the yellow label serves the essential purpose of alerting individuals to the potential hazards associated with pressurized gas systems.