(10) If an acetylene cylinder should catch fire it can usually be
extinguished with a wet blanket. A burlap bag wet with calcium chloride solution
is effective for such an emergency. If these fail, spray a stream of water on the
cylinder to keep it cool.
(11) Never interchange acetylene regulators, hose, or other apparatus with
similar equipment intended for oxygen.
(12) Always turn the acetylene cylinder so that the valve outlet will point
away from the oxygen cylinder.
(13) When returning empty cylinders, see that the valves are closed to
prevent escape of residual acetylene or acetone solvent. Screw on protecting caps.
c. Oxygen cylinders.
(1) Always refer to oxygen by its full name and not-by the word "air" alone.
(2) Keep oxygen away from oil, grease, and other flammable materials. Do
not handle oxygen cylinders, valves, regulators, hose, or apparatus with oily
hands. Do not permit a jet of oxygen to strike greasy clothes, any oily surface,
or to enter a fuel oil storage container.
Oil or grease in the presence of oxygen will ignite violently.
Especially in enclosed pressurized areas.
(3) Do not store oxygen cylinders together with cylinders containing
acetylene or other fuel gases. They should be grouped separately with a fire
resisting wall between the acetylene and oxygen cylinders.
(4) When oxygen cylinders are in use or being moved, care must be taken to
avoid dropping, knocking over, or striking the cylinders with heavy objects. Do
not handle oxygen cylinders roughly.
(5) All oxygen cylinders with leaky valves or safety fuse plugs should be
set aside and marked for the attention of the supplier. Do not tamper with or
attempt to repair oxygen cylinder valves. Do not use a hammer or wrench to open
Do not substitute oxygen for compressed air in pneumatic tools.
use it to blow out pipelines, test radiators, purge tanks or
containers, or to dust clothing or work.
(6) Open the oxygen cylinder valve slowly to prevent damage to the
regulator high-pressure gage mechanism. Be sure that the regulator tension screw
is released before opening the valve. When not in use, the cylinder valves should
be closed and the protecting caps screwed on to prevent damage to the valves.
(7) When the oxygen cylinder is in use open the valves to the full limit to
prevent leakage around the valve stem.
(8) Always use regulators on oxygen cylinders to reduce the cylinder
pressure to a low working pressure. Otherwise the high pressure will burst the
(9) Never interchange oxygen regulators, hose, or other apparatus with
similar equipment intended for other gases.