The label on elevated pressure piping must indicate which two things?

The label on elevated pressure piping must indicate which two things?

• A. Gas type only
• B. Pressure only
• C. Piping material
• D. Type of gas and pressure

Answer: (D)

Labeling elevated-pressure gas piping must show both the type of gas and the operating pressure. This dual information ensures anyone working with the system can immediately identify what gas is in the line and how much pressure it carries, which is essential for selecting the correct regulators, valves, and safety procedures and for preventing cross-connection hazards. If only the gas type were shown, the pressure would be unknown; if only the pressure were shown, the gas identity would be unknown. Piping material is not what the label communicates in this context.

Labeling elevated-pressure gas piping must show both the type of gas and the operating pressure. This dual information ensures anyone working with the system can immediately identify what gas is in the line and how much pressure it carries, which is essential for selecting the correct regulators, valves, and safety procedures and for preventing cross-connection hazards. If only the gas type were shown, the pressure would be unknown; if only the pressure were shown, the gas identity would be unknown. Piping material is not what the label communicates in this context.