CHM 605. Compressed Gas and Cryogen Safety. compressed gases hazards storage, handling & transportation using gas line assembly leaking cylinders empty cylinders special: flammable, toxic, and highly toxic gases cryogenic liquids storage and handling PPE cool traps and baths.
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Compressed Gas and Cryogen Safety
bp < -160ºC and used as ….
N2 and He most common here
Most of the “normal” size cylinders everywhere around here (N2, Ar, H2, He, air, O2, CO2….) are at 2200 - 2600 psig.
This was a combination chemical hazard PLUS pressure issue…
simple asphyxiation (oxygen displaced)
chemical hazards, e.g. flammability, reactivity, burns
health hazards, e.g., toxicity, mutagenicity…Pressurized Gas Hazards
Aldrich Tech Bulletin AL-151
Acetylene, Arsine, Diborane, Fluorine, Hydrogen Cyanide, Germane, Hydrogen fluoride, Nitrogen dioxide, Oxygen, Phosgene, Silane
This is a partial list.
See Approval Form
(Asphyxiation is forever….)
(a) broken bone(s)
(b) back sprain/strain
(c) tissue damage (“cold burn”)
(d) hearing loss