The following packagings are authorized:

(1) Cylinders and gas receptacles conforming to the construction, testing and filling requirements approved by the competent authority.

(2) The following combination packagings provided that the general provisions of 4.1.1 and 4.1.3 are met:

Outer packagings:
Drums (1A1, 1A2, 1B1, 1B2, 1N1, 1N2, 1H1, 1H2, 1D, 1G);
Boxes (4A, 4B, 4N, 4C1, 4C2, 4D, 4F, 4G, 4H1, 4H2);
Jerricans (3A1, 3A2, 3B1, 3B2, 3H1, 3H2).

Inner packagings:
(a) For non-toxic gases, hermetically sealed inner packagings of glass or metal with a maximum capacity of 5 L per package;
(b) For toxic gases, hermetically sealed inner packagings of glass or metal with a maximum capacity of 1 L per package.

Packagings shall conform to the packing group III performance level.