Current through Register 2024 Notice Reg. No. 38, September 20, 2024
(a) Fuel gas hose
and oxygen hose shall be easily distinguished from each other. The contrast may
be either by different colors or by surface characteristics readily
distinguishable by the sense of touch. Oxygen and fuel gas hoses shall not be
interchangeable. A single hose having more than one passage shall not be used.
NOTE: Red is generally accepted as the color for fuel
gas, while green is used for oxygen hose.
(1) Hose for oxy-fuel gas service shall
comply with the Specification for Rubber Welding Hose, 1979, Rubber
Manufacturers Association.
(2) When
parallel lengths of oxygen and acetylene hose are taped together for
convenience and to prevent tangling, not more than 4 inches out of 12 inches
shall be covered by tape.
(3) Hose
connections shall comply with the Standard Connections for Regulator Outlets,
Torches and Fitted Hose for Welding and Cutting Equipment, Compressed Gas
Association, Pamphlet E-1-1980.
(4)
Hose connections shall be clamped or otherwise securely fastened in a manner
that will withstand, without leakage, twice the pressure to which they are
normally subjected in service, but in no case less than a pressure of 300
p.s.i. Oil-free air or an oil-free inert gas shall be used for the
test.
(5) Manifold hose
connections, including both ends of the supply hose that lead to the manifold,
shall be such that the hose cannot be interchanged between fuel gas and oxygen
manifolds and supply header connections. Adapters shall not be used to permit
the interchange of hose. Hose connections shall be kept free of grease and
oil.
(6) 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, shall be inspected at the beginning of each working shift.
(7) Hose which has been subject to flashback,
or which shows evidence of severe wear or damage, shall be tested to twice the
normal pressure to which it is subject, but in no case less than 300 p.s.i.
Defective hose, or hose in doubtful condition, shall not be used.
(8) Hose showing leaks, burns, worn places,
or other defects rendering it unfit for service shall be repaired or
replaced.
(9) Boxes used for the
storage of gas hose shall be ventilated.
1.
Amendment of subsection (a) filed 5-16-75; effective thirtieth day thereafter
(Register 75, No. 20).
2. Amendment of subsection (a) filed 2-20-80;
effective thirtieth day thereafter (Register 80, No. 8).
3.
Amendment filed 6-12-87; operative 7-12-87 (Register 87, No.
26).
Note: Authority cited: Section
142.3, Labor
Code. Reference: Section
142.3, Labor
Code.
