Paragraph 4 Flammable solids
(1)
Packages containing flammable solids shall be loaded so that a free circulation of air within the loading space provides a uniform temperature of the load.
(2)
Where the contents of a vehicle or container exceed 5000 kg of flammable solids, the load shall be divided into stacks of not more than 5000 kg separated by air spaces of at least 0.05 m.