Cylinder Hosing Requirements

Fuel gas hose and oxygen hose must be easily distinguishable from each other. The contrast may be made by different colors or by surface characteristics readily distinguishable by the sense of touch. Oxygen and fuel gas hoses must not be interchangeable. A single hose having more than one gas passage must not be used. When parallel sections of oxygen and fuel gas hose are taped together, not more than four inches out of 12 inches may be covered by tape.

All hose in use, carrying acetylene, oxygen, natural or manufactured fuel gas, or any gas or substance which may ignite or enter into combustion, or be in any way harmful to employees, must be inspected at the beginning of each working shift. Defective hoses must be removed from service immediately.

Hose which has been subject to flashback, or which shows evidence of severe wear or damage, must be tested to twice the normal pressure to which it is normally subjected, but in no case less than 300 p.s.i. Defective hose, or hose in doubtful condition, must not be used. Hose couplings must be of the type that cannot be unlocked or disconnected by means of a straight pull without a rotating motion.

Boxes used for the storage of gas cylinder hosing must be well-ventilated.

To learn more about Construction Hot Work visit our Construction Hot Work Online Training web page.