True or False: All brazed joints must be examined for leakage using soapy water or safe alternatives for oxygen during the initial pressure test.

The assertion that all brazed joints must be examined for leakage using soapy water or safe alternatives for oxygen during the initial pressure test is correct. This is essential because the integrity of brazed joints is critical in medical gas systems, where leakage can lead to hazardous situations, including fire or explosion in the presence of oxygen. By testing with soapy water or alternatives, you can visually identify leaks as bubbles will form at any point where gas escapes.

This practice aligns with safety standards and regulations for medical gas systems, which prioritize ensuring that all components are free from leaks before the system is put into operation. Using safe alternatives for oxygen is particularly important, as oxygen is an oxidizer that can react vigorously with certain substances. Thus, proper testing methods are crucial for system safety and compliance with industry standards.