System Testing Flashcards

An RMGA is verifying outlet flow rates during system testing. What is the minimum acceptable flow rate at a single oxygen outlet per NFPA 99 for a general care area?

Answer: 5 L/min

NFPA 99 specifies a minimum flow rate of 5 L/min at each individual oxygen outlet under system operating conditions for general patient care areas.

During cross-connection testing using an oxygen analyzer, what reading indicates a cross-connection exists between the oxygen and nitrous oxide lines?

Answer: Any non-zero reading at the nitrous oxide outlet when oxygen is isolated

Any detectable oxygen concentration at a nitrous oxide outlet when only nitrogen test gas is flowing through the nitrous oxide line indicates a cross-connection.

Who is authorized to certify that a new medical gas piping system meets all NFPA 99 requirements before it is placed into service?

Answer: A qualified ASSE 6010 medical gas system verifier

NFPA 99 requires that a qualified, independent verifier credentialed to ASSE 6010 standard certify the system before it is placed into service.

When testing a medical vacuum system, what minimum vacuum level must be achieved at each inlet station to pass?

Answer: -380 mmHg

NFPA 99 requires that medical vacuum systems maintain a minimum of -380 mmHg (approximately -7.3 psi) at each inlet under peak demand conditions.

What is the purpose of testing the automatic switchover function of a medical gas source equipment during system testing?

Answer: To confirm the backup supply activates automatically when the primary supply is depleted

Switchover testing confirms that the reserve or secondary gas supply automatically activates and maintains system pressure when the primary supply is exhausted or fails.

A medical gas system test reveals that the pressure at the farthest outlet drops below 50 psig when multiple outlets are opened simultaneously. What does this indicate?

Answer: The pipeline may be undersized or the source pressure is insufficient

A pressure drop below 50 psig under simultaneous demand suggests the piping diameter is too small for peak load or the source equipment is not supplying adequate pressure.

During system testing, which document must the RMGA verifier complete and provide to the facility upon successful completion?

Answer: A completed verification report documenting all test results

NFPA 99 and ASSE 6010 require the verifier to provide a complete written verification report documenting all tests performed, results, and certification of compliance.