The following packagings are authorized, provided the general provisions of 4.1.1 and 4.1.3 are met:
(1) Pressure receptacles, provided that the general provisions of 4.1.3.6 are met.

(2) Steel flasks or bottles with threaded closures with a capacity not exceeding 3.0 L; or

(3) Combination packagings which conform to the following provisions:

(a) Inner packagings shall comprise glass, metal or rigid plastics intended to contain liquids with a maximum net mass of 15 kg each.
(b) The inner packagings shall be packed with sufficient cushioning material to prevent breakage.
(c) Either the inner packagings or the outer packagings shall have inner liners or bags of strong leakproof and puncture-resistant material impervious to the contents and completely surrounding the contents to prevent it from escaping from the package irrespective of its position or orientation.
(d) The following outer packagings and maximum net masses are authorized:


|                                        |          | Maximum    |
| Outer packaging                        | Art      | net mass   |
|----------------------------------------|----------|------------|
| Drums                                  |          |            |
|             steel                      | 1A1, 1A2 |   400 kg   |
|             metal, other than steel    | 1N1, 1N2 |   400 kg   |
|               or aluminium             |          |            |
|             plastics                   | 1H1, 1H2 |   400 kg   |
|             plywood                    |    1D    |   400 kg   |
|             fibre                      |    1G    |   400 kg   |
|----------------------------------------|----------|------------|
| Boxes                                  |          |            |
|             steel                      |    4A    |   400 kg   |
|             metal, other than steel    |    4N    |   400 kg   |
|               or aluminium             |          |            |
|             natural wood               |   4C1    |   250 kg   |
|             natural wood with          |   4C2    |   250 kg   |
|               sift-proof walls         |          |            |
|             plywood                    |    4D    |   250 kg   |
|             reconstituted wood         |    4F    |   125 kg   |
|             fibreboard                 |    4G    |   125 kg   |
|             expanded plastics          |   4H1    |    60 kg   |
|             solid plastics             |   4H2    |   125 kg   |
|----------------------------------------|----------|------------|