This publication provides recommendations for the care of high pressure cylinders for underwater breathing. In recognition of the extreme conditions to which compressed gas cylinders used for underwater diving service are exposed, this publication supplements information contained in the references listed in Section 8.

This publication is not intended to give detailed or specific recommended procedures for cleaning, paint stripping, inspection, valve maintenance, etc., that would be better provided by the cylinder manufacturer or distributor of the compressed gas underwater equipment.

This publication also recognizes that other types of SCUBA do exist. Closed circuit oxygen and mixed gas systems have special cylinder requirements. All requests for information concerning such equipment should be directed to the cylinder manufacturer.