During a pressure test for completed manufactured assemblies, what percentage for leakage must not be exceeded?

The maximum allowable percentage of leakage during a pressure test for completed manufactured assemblies is established to ensure the safety and reliability of medical gas systems. A threshold of 0.5% leakage must not be exceeded during these tests. This low percentage is critical because medical gas systems are integral to patient care and any leaks could compromise the integrity of the gas supply and, consequently, patient safety.

Setting the limit at 0.5% reflects best practices and rigorous safety standards in the healthcare industry, particularly in environments where gases are used for therapeutic purposes. Maintaining such a low level of leakage helps prevent potential hazards associated with gas operations, such as fires, asphyxiation, or equipment malfunction.

In contrast, the other options suggest higher allowable leak percentages, which would not align with the stringent safety requirements necessary for medical gas systems that directly impact patient health and safety. The adherence to a 0.5% leakage threshold is an essential part of compliance with industry standards and regulations that govern medical gas systems.