1. The carriage of packages containing GASES: COMPRESSED, LIQUEFIED OR DISSOLVED UNDER PRESSURE in small containers is permitted, with the exception of the following gases—
ARGON
CARBON DIOXIDE
HELIUM
KRYPTON
NEON
NITROGEN
NITROUS OXIDE N2O (OXIDIZING)
OXYGEN (OXIDIZING)
XENON
MIXTURES OF ANY OF THE ABOVE
AIR