Compressed gas cylinders are common in all types of work environments, including construction, manufacturing, health care, and research laboratories. If not handled with care, a compressed gas cylinder can become a missile capable of penetrating cement-block walls. Under the hazard communication standard, chemicals stored in compressed gas cylinders are considered to pose a physical hazard based upon how they are stored.

Keep your compressed gas cylinders in compliance with applicable Cal/OSHA standards by making sure that:

• Cylinders with a water-weight capacity of over 30 pounds can be connected to a valve-protector device, or that they have a collar or recess to protect the valve.
• Cylinders are always equipped with valve protectors when not in use or connected for use.
• Cylinder valves are always closed when work is finished, before they are moved, and when they are empty.
• The gas in the cylinder is clearly identified, and the cylinder's markings are legible.
• Cylinders are stored safely, in areas where they will not come into contact with external heat sources, including flames, radiant heat, electric arc or high temperature steam lines.
• There is adequate ventilation
• Cylinders are protected against tipping and falling while stored and while being transported.
• Cylinders containing liquefied fuel gas are always stored or transported in a position that keeps the safety relief device in contact with the vapor space in the cylinder.
• Low-pressure fuel gas cylinders are checked regularly for corrosion, distortion, cracks or other defects.

Federal OSHA's Compressed Gas and Equipment Topics Page

California's General Industry Safety Orders, Group 9: Compressed Gas and Air Equipment

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