Compressed Gas Handling And Storage

Handling and storing compressed gas are inherent parts of virtually all diving activities, whether conducted with scuba or surface supplied diving equipment. It is imperative that divers be familiar with the safety aspects of handling compressed gas. Diver's compressed gas shall be stored in military standard (MIL-STD) or DOT approved cylinders or ASME flasks applicable to the type and pressure levels of the compressed gas being stored.

Compressed gas shall be transported in cylinders meeting Department of Transportation (DOT) regulations applicable to the compressed gas being handled. DOT approved cylinders bear a serial number, DOT inspection stamp, a pressure rating, the date of last hydrostatic test, are equipped with applicable cylinder valve, and are appropriately color coded.

Refer to the following references for more detailed information on compressed gas handling and storage:

■ Industrial Gases, Generating, Handling and Storage, NAVSEA Technical Manual S9086-SX-STM-000/CH-550

American and Canadian Standard Compressed-Gas Cylinder Valve Outlet and Inlet Connections (ANSI-B57.1 and CSA-B96).

American National Standard Method of Marking Portable Compressed-Gas Containers to Identify the Material Contained (Z48.1)

■ Guide to the Preparation of Precautionary Labeling and Marking of Compressed Gas Cylinders (CGA Pamphlet C-7).

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