How long is the service life of composite oxygen bottles that conform to DOT-E-8162?

The service life of composite oxygen bottles that conform to DOT-E-8162 is indeed 15 years or 10,000 filling cycles, whichever occurs first. This standard is designed to ensure safety and reliability in the use of these bottles throughout their lifespan.

Composite materials are often utilized in oxygen bottles due to their lightweight and high strength, making them suitable for aviation and other applications where weight is critical. The 15-year limit reflects a balance between operational flexibility and the need to continuously evaluate the integrity of the bottles, as the materials can degrade over time due to factors such as exposure to heat, pressure, and environmental conditions.

The cycle limit of 10,000 filling cycles also acknowledges that repeated use can introduce wear and tear, which may not always be visible. Therefore, these measures are set to ensure that safety is prioritized, avoiding potential risks associated with older or overly used oxygen bottles. The combination of time and use guarantees that the bottles maintain their performance and reduce the chances of failure during critical moments when oxygen supply is needed.