Which of the following is important for the integrity of a medical gas piping system?

Periodic pneumatic testing is essential for the integrity of a medical gas piping system because it ensures that the system is airtight and functioning correctly. This testing involves applying air or another gas under pressure and monitoring for any leaks. Detecting leaks is crucial, as they can compromise the delivery of medical gases, potentially leading to hazardous situations for patients and healthcare personnel. By performing these tests at regular intervals, healthcare facilities can ensure that their medical gas systems meet safety standards and are reliable for patient care.

Other factors, while relevant, do not provide the same level of assurance regarding the system's integrity. Reducing the number of joints can help limit potential leak points but may not fully address all integrity issues. Increasing gas temperature is generally not advisable as it could adversely affect the properties of the gas and the materials of the piping system. Minimizing maintenance could lead to undetected wear and tear, which may impair system integrity over time. Therefore, periodic pneumatic testing stands out as a critical measure for ongoing verification of safety and integrity in medical gas systems.