How must gas piping or tubing be identified in commercial, industrial, and assembly buildings?

Gas piping or tubing must be identified using specific colors and labels to ensure safety and prevent confusion with other systems. In commercial, industrial, and assembly buildings, the correct identification method involves painting the piping yellow and labeling it clearly as either GAS or PROPANE. This coloring convention is established to alert workers and emergency responders of the presence of flammable gas, thereby minimizing the risk of accidents and ensuring proper handling.

Using yellow for gas piping helps differentiate it from other utilities, such as water or compressed air, which have distinct identification standards. This practice is crucial in industrial contexts where multiple types of systems may coexist, helping to avoid dangerous mistakes and ensuring appropriate responses in emergencies. The clarity in labeling and color coding is essential for maintaining safety standards within such environments.