Compressed Gas-Safe Handling and Use

Compressed gases are dangerous must be handled and used only by trained employees. Employers must inform employees about chemical hazards through a hazard communication program, labels, and other forms of warnings. Always consult the gas manufacturer’s Safety Data Sheets (SDSs) for specific information.

 

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• Ensure that compressed gas cylinders are clearly identified. Labels must not be defaced or removed. Do not accept or use containers whose content labels are not legible. Instead, separate the containers and return them to the supplier. Do not use the container’s color to identify the cylinder’s content and do not repaint the container. All gas lines leading from a compressed gas supply must be clearly labeled or identified in compliance with the standard requirements.

 

• Leave valve protection caps in place (if provided) until cylinders are secured and connected for use. Some types of gas cylinders have valve outlet caps and plugs that form a gas-tight seal. Keep the device on the valve outlet except when containers are secured and connected.

 

• Keep cylinder valves closed except when the cylinder is being used. Closing the valve isolates the cylinder’s contents from the surrounding atmosphere and prevents corrosion and contamination of the valve. When opening a cylinder valve, stand so that the valve outlet is pointed away from yourself and all other employees. Open valves slowly.

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• Never tamper with or alter cylinders, valves, or safety-relief devices. Do not tighten connections or leaking fittings or attempt other repairs while the system is under pressure.

 

• Do not subject cylinders to artificially low temperatures or temperatures above 125 F. Do not place them next to heat sources or allow a flame to contact any part of the cylinder.

 

• Do not place cylinders where they become part of an electric circuit or use them as a ground during electric welding.

 

The Importance of Ergonomics in the Workplace

• Transferring compressed gases from one cylinder to another should be performed only by the gas supplier or by personnel familiar with the hazards. They must be trained and qualified to use the proper trans fill equipment and must have detailed written operating procedures that include equipment inspections and maintenance procedures. Non-refillable cylinders cannot be refilled.

 

• Avoid dragging or sliding cylinders. Do not lift cylinders by the caps. Firmly secure the cylinder and move with a suitable hand truck, lift truck, with a cradle or platform. Do not use lifting magnets. Slings, ropes, or chains are acceptable if the cylinder is equipped by the manufacturer with lifting attachments. Never drop cylinders or strike them against one another or other surfaces.

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