In a nonstandard pressure station outlet identification, which information is required?

• A. Gas name
• B. Nonstandard pressure
• C. Name of the gas
• D. Name of the gas and nonstandard pressure

Answer: (D)

When a station outlet operates at a nonstandard pressure, both the gas name and the nonstandard pressure must be identified. The gas name tells you which gas is intended to flow, while the nonstandard pressure indicates the exact pressure at which that gas is delivered. This dual labeling prevents misconnection and ensures that the correct gas is delivered at the correct pressure, which is critical for patient safety and proper equipment performance. If you only label the gas name, you might not know the pressure and risk using the wrong setting. If you only label the pressure, you won’t know which gas is coming through. Together, they provide complete, unambiguous identification.