Caution and Warning Signs

Updated July 15, 2024

Caution Signs are required to be posted at the entrance to a space where hazardous materials are stored or used. The Caution sign is based on a location's chemical inventory; it alerts emergency responders and visitors of potential hazards and precautions for entry.

Warning Signs alert personnel and visitors to health and safety hazards beyond those identified in the caution sign. Specific warning signs may be required based on the type of hazard present.

Compressed Gases and Cryogens

group of 16 gas cylinders of various sizes and colors

Updated September 27, 2024

Compressed and liquefied gases are routinely used in laboratories, shops and various other operations at the University. Compressed gas is a generic term used for describing compressed gases, liquefied compressed gases, refrigerated liquefied gases (cryogenic fluids) and dissolved gases.