What pressure should oxygen hoses be filled to when checking for leaks?

When checking for leaks in oxygen hoses, the pressure should be set to 50 psi. This pressure is considered safe and effective for leak testing because it provides a sufficient flow rate to reveal any leaks without risking damage to the system or compromising safety. At this pressure, if there are any leaks, the escaping oxygen can be detected easily through the audible sound or visual cues, such as bubbles from a soapy water solution.

Using pressure levels higher than 50 psi, like 70 psi or 90 psi, can be hazardous as it increases the risk of hose failure or accidents due to the high pressure of oxygen, which can greatly amplify any leaks that might be present. A lower pressure, such as 30 psi, might not sufficiently test the integrity of the hoses, potentially allowing undetected leaks to go unnoticed. Therefore, 50 psi strikes a balance between safety and effectiveness in leak detection.