What is the minimum oxygen cylinder pressure necessary to pass the high pressure leak test?

Passing the high-pressure leak test requires a minimum oxygen cylinder pressure of 165 bar. This pressure is established to ensure that the cylinder can sufficiently withstand the test conditions and maintain integrity without any leaks.

During the high-pressure leak test, it's crucial to confirm that the cylinder can hold the necessary pressure, which demonstrates that it is safe for use in emergency situations where oxygen supply is critical. The requirement for a minimum of 165 bar also serves as a safety measure, ensuring that there is an adequate buffer above normal operating pressures, thus reducing the risk of failure due to wear, manufacturing defects, or service-related stress.

This level acts as a standard in maintaining the reliability and safety of equipment used in mine rescue operations, where failure could lead to severe consequences for personnel in hazardous environments.