At what intervals do scuba cylinders require a pressure test?

Scuba cylinders require a pressure test at intervals typically specified as one to five years. This testing is crucial for ensuring the safety and reliability of the cylinder, as it checks for structural integrity and identifies any potential issues such as corrosion or material fatigue that could compromise the cylinder under high pressure.

The reason for the specific timeframe of one to five years is based on industry standards and practices that prioritize diver safety. Regular pressure testing helps to verify that the cylinder can safely hold the pressure it is designed for and that it hasn't developed weaknesses over time due to use or environmental conditions.

Choosing a timeframe that is too short or too long could either be unnecessarily burdensome for the diver or could pose safety risks if the cylinder goes untested for an extended period. The one to five-year interval strikes a balance that is widely accepted in the diving community and aligns with manufacturers' recommendations.