If leaks occur in cylinders of noxious or combustible gases, close the valve and remove the cylinder outdoors or place in fume hood and notify the Safety Office. Purge oxygen and acetylene lines before lighting. When bleeding off flammable gases, use a ground wire on cylinder valves. Do not use recessed top of the tank cylinders for the storage of tools or other equipment. Never direct compressed air or other gases toward the body.
Exercise care to avoid injury to hands or feet.
The use of safety shoes and heavy gloves is highly recommended. Use the cylinder valve for turning the gas off, not the regulator valve. Close the main cylinder valve as soon as it is no longer necessary to have it open. Before you remove the regulator make sure that the cylinder valve is closed. Place a trap between the regulator valve and the reactor vessel to prevent contamination when carrying out chemical reactions using pressurized gas.