Who is responsible for verifying the oxygen analysis of a cylinder of enriched air?

The responsibility for verifying the oxygen analysis of a cylinder of enriched air lies with the diver who will use the cylinder. This practice is critical for ensuring the safety of the dive. Before utilizing enriched air, it is essential that the diver confirm the exact oxygen content of the gas mixture they will be breathing. This step helps to prevent the risk of oxygen toxicity and ensures that the dive profile is appropriate for the specific blend being used.

Although other roles, such as dive instructors, dive masters, and dive shop technicians, play significant roles in the overall dive preparation process, the ultimate responsibility for analyzing and verifying the oxygen content rests with the diver. This is because divers need to be informed about the specific mix they will be using and understand how it affects their dive plan, including depth limits and no-decompression limits. Proper analysis empowers divers to take ownership of their safety and make informed decisions about their dive activities.