This procedure is a vital safety measure designed to assess the structural integrity of high-pressure containers used in underwater breathing apparatus. It involves subjecting the cylinder to pressures significantly exceeding its normal operating parameters while measuring its expansion. By observing the cylinder’s behavior under these conditions, qualified technicians can determine whether the metal has weakened or degraded, indicating a potential risk of failure during use.
The process is crucial for maintaining diver safety and preventing potentially catastrophic accidents. Regular inspections help ensure that these cylinders remain safe for repeated use. The practice has evolved over time, with advancements in testing methodologies and materials science leading to more accurate and reliable assessments. This preventative measure mitigates risks associated with metal fatigue, corrosion, and other forms of material degradation caused by repeated pressurization and environmental factors.