This publication provides general information about the properties, transportation, storage, safe handling, an(~
safe use of the cryogenic liquids commonly used by industry and institutions. It is intended for cryogenic liquid
users, shippers, carriers, distributors, equipment designers or installers, safety administrators, and anyone
seeking an introduction to cryogenic liquids. If more detailed or specialized information is required, consult your
cryogenic liquid supplier. The information in this standard is intended to complement federal, state, provin-
cial/territorial, local, and insurance company safety requirements.
The most common industrial gases that are transported, handled, and stored as cryogenic liquids are oxygen,
nitrogen, argon, hydrogen, and helium. Three rare atmospheric gases, neon, krypton, and xenon, are also
transported, handled, and stored as cryogenic liquids. Although not usually classified as industrial gases, lique-
fied natural gas (LNG), liquid methane, ethylene, and carbon monoxide are also transported, handled, and
stored as cryogenic liquids.