D11 Compressed Gas Supplies

Oxygen is used in the oxygen arc cutting process. The gas is stored in high pressure cylinders and delivered at a reduced rate via the regulator to the cutting torch. Of all the high pressure gases handled during diving operations, oxygen is the most hazardous. This is true because it lowers the ignition temperature of flammables and greatly accelerates combustion. Hydrocarbons ignite almost spontaneously in the presence of oxygen and oxygen fires create intense heat. The following paragraphs describe precautions to be followed when handling compressed gases.

D-11.1 Use, Handling and Storage of Compressed Gases. The necessity for following the precautions in the lists below cannot be too strongly emphasized.

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