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P 003:
Dangerous goods shall be placed in suitable outer packagings. The packagings shall meet the provisions of 4.1.1.1, 4.1.1.2, 4.1.1.4, 4.1.1.8 and 4.1.3 and be so designed that they meet the construction requirements of 6.1.4. Outer pack-agings constructed of suitable material, and of adequate strength and design in relation to the packaging capacity and its intended use, shall be used. Where this packing instruction is used for the transport of articles or inner packagings of combination packagings, the packaging shall be designed and constructed to prevent inadvertent discharge of articles during normal conditions of carriage.


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P 801:
This instruction applies to UN Nos. 2794, 2795 and 3028 and used batteries of UN No. 2800.

The following packagings are authorized, provided that the provisions of 4.1.1.1, 4.1.1.2, 4.1.1.6 and 4.1.3 are met:

(1) Rigid outer packagings, wooden slatted crates or pallets.

Additionally, the following conditions shall be met:

(a) Battery stacks shall be in tiers separated by a layer of electrically non-conductive material;
(b) Battery terminals shall not support the weight of other superimposed elements;
(c) Batteries shall be packaged or secured to prevent inadvertent movement;
(d) Batteries shall not leak under normal conditions of carriage or appropriate measures shall be taken to prevent the release of electrolyte from the package (e.g. individually packaging batteries or other equally effective methods); and
(e) Batteries shall be protected against short circuits.

(2) (2) Stainless steel or plastics bins may also be used to carry used batteries.

Additionally, the following conditions shall be met:

(a) The bins shall be resistant to the electrolyte that was contained in the batteries;
(b) The bins shall not be filled to a height greater than the height of their sides;
(c) The outside of the bins shall be free of residues of electrolyte contained in the batteries;
(d) Under normal conditions of carriage, no electrolyte shall leak from the bins;
(e) Measures shall be taken to ensure that filled bins cannot lose their content;
(f) Measures shall be taken to prevent short circuits (e.g. batteries are discharged, individual protection of the battery terminals, etc.); and
(g) The bins shall be either:
  (i) covered; or
 (ii) carried in closed or sheeted wagons or containers.

NOTE: The packagings authorized in (1) and (2) may exceed a net mass of 400 kg (see 4.1.3.3).