The following packagings are authorized:

(1) Cylinders and gas receptacles conforming to the construction, testing and filling requirements approved by the com-petent 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 litres per package;
(b) For toxic gases, hermetically sealed inner packagings of glass or metal with a maximum capacity of 1 litre per package.

Packagings shall conform to the packing group III performance level.