Class 4 Dangerous Goods – Flammable Solids; Substances Liable To Spontaneous Combustion; Substances Which Emit Flammable Gases When In Contact With Water

Dangerous Goods which are classed as Flammable Solids are materials which, under conditions encountered in transport, are readily combustible or may cause or contribute to fire through friction, self-reactive substances which are liable to undergo a strongly exothermic reaction or solid desensitised explosives.



4.1: Flammable solids.

4.2: Substances liable to spontaneous combustion.

4.3: Substances which, in contact with water, emit flammable gases.

Reason For Regulation


Commonly Transported Flammable Solids; Spontaneous Combustibles And ‘Dangerous When Wet’ Materials

  1. Alkali metals
  2. Metal powders
  3. Aluminium phosphide
  4. Sodium batteries
  5. Sodium cells
  6. Firelighters
  7. Matches
  8. Calcium carbide
  9. Camphor
  10. Carbon
  11. Activated carbon
  12. Celluloid
  13. Cerium
  14. Copra
  15. Seed cake
  16. Oily cotton waste
  17. Desensitised explosives
  18. Oily fabrics
  19. Oily fibres
  20. Ferrocerium
  21. Iron oxide (spent)
  22. Iron sponge/direct-reduced iron (spent)
  23. Metaldehyde
  24. Naphthalene
  25. Nitrocellulose
  26. Phosphorus
  27. Sulphur

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