scope:

This standard applies to the storage, use, and handling of compressed and liquefied gases in portable cylinders in all occupancies.

This standard shall not apply to the following:

(a)* Off-site transportation of compressed gases

(b) Storage, use, and handling of cylinders at gas manufacturer and distributor facilities

(c) Storage, use, and handling of radioactive gases

(d)* Storage, use, and handling of medical gases at health care facilities

(e)* Cryogenic liquids in bulk and portable containers

(f)* Systems for gases, each containing more than 20,000 scf (566 m3) of oxygen, 3000 scf (85 m3) of hydrogen, 5000 scf (142 m3) of acetylene

(g) Gas systems consisting only of hydrogen (Such systems shall be in accordance with NFPA 50A, Standard for Gaseous Hydrogen Systems at Consumer Sites.)

(h)* Storage and use Of more than a total of 735 lb (333 kg) water capacity [nominal 300 lb (136 kg) propane] of liquefied flammable gases

(i) system consisting of a single cylinder of oxygen and a single cylinder of fuel gas used for welding and cutting

(j) Compressed and liquefied gases in use or in separate storage areas in quantities less than those specified in Table 1-1.2(a) and Table 1-1.2(b), except as specified elsewhere in this standard

(k) Flammable gases used as a vehicle fuel when stored on the vehicle

(1) The handling and use of compressed or liquefied gases in laboratory work areas covered by NFPA 45, Standard on Fire Protection for Laboratories Using Chemicals