Station outlets/inlets shall be identified as to the _________ for the specific gas or vacuum provided.

• A. Name or chemical symbol
• B. Chemical symbol
• C. Name
• D. Piping Type

Answer: (A)

Labeling station outlets for medical gases with either the gas’s name or its chemical symbol ensures instant, unambiguous identification of what is being provided. This is essential to prevent misconnections that could be dangerous if the wrong gas is connected. The name is universally understood, while the chemical symbol is concise and quick to recognize; either method makes the outlet clearly associated with the specific gas or vacuum. Relying on the piping type does not communicate which gas is available, so it fails to prevent incorrect connections.