Compressed gases and liquids stored in cylinders at 29 psi or higher presents various
hazards. Cylinders are heavy and potential release of pressurized gas can inflict
physical harm. Once gas is released, it expands and displaces oxygen, resulting in
asphyxiating conditions especially if released in a small space with inadequate ventilation.
The gases themselves may be inherently toxic such as carbon monoxide, ammonia, arsine
and many others or they may be flammable such as hydrogen, methane, propane and my
Compressed gas safety
Cylinders and contents of compressed gases need to be handled according to the safe handling of compressed gases [docx] guidance document. This document contains important hazard and controls information
that researchers need to know when working with compressed gases.