Hazardous Goods

This table can be used as a guideline to see which classes cannot be stowed together for despatch by Sea or Ferry. Individual substances may have more stringent restrictions or fall within the 18 IMDG Segregation Groups.


Class 1.1, 1.2, 1.5 1.3, 1.6 1.4 2.1 2.2 2.3 3 4.1 4.2 4.3 5.1 5.2 6.1 6.2 7 8 9
Explosives 1.1, 1.2, 1.5
Explosives 1.3, 1.6
Explosives 1.4
Flammable Gases 2.1
Non-toxic, non-flammable gases 2.2
Toxic gases 2.3
Flammable Liquids 3
Flammable solids (including self-reactive substances and solid desensitized explosives) 4.1
Substances liable to spontaneous combustion 4.2
Substances which, in contact with water, emit flammable gases 4.3
Oxidising substances(agents) 5.1
Organic peroxides 5.2
Toxic substances 6.1
Infectious substance 6.2
Radioactive material 7
Corrosive substance 8
Miscellaneous dangerous substances and articles 9
Class 1.1, 1.2, 1.5 1.3, 1.6 1.4 2.1 2.2 2.3 3 4.1 4.2 4.3 5.1 5.2 6.1 6.2 7 8 9


Classes and their definitions

Class 1: Explosives

  • 1.1: substances and articles which have a mass explosion hazard
  • 1.2: substances and articles which have a projection hazard not a mass explosion hazard
  • 1.3: substances and articles which have a fire hazard and either a minor blast hazard or a minor projection hazardor both, but not a mass explosion hazard
  • 1.4: substance and articles which present no significant hazard
  • 1.5: very insensitive substances which have a mass explosion hazard
  • 1.6: extremely insensitive articles which do not have a mass explosion hazard

Class 2: Gases

  • 2.1: flammable gases
  • 2.2: non-flammable, non-toxic gases
  • 2.3: toxic gases

Class 3:Flammable liquids

Class 4:Flammable solids; substances liable to spontaneous combustion; substances which, in contact with water, emit flammable gases

  • 4.1:flammable solids, self-reactive substances and desensitized explosives
  • 4.2:substances liable to spontaneous combustion
  • 4.3:substances which, in contact with water, emit flammable gases

Class 5:Oxidizing substances and organic peroxides

  • 5.1:oxidizing substances
  • 5.2:organic peroxides

Class 6: Toxic and infectious substances

  • 6.1: toxic substances
  • 6.2: infectious substances

Class 7: Radioactive material

Class 8: Corrosive substances

Class 9: Miscellaneous dangerous substances and articles

Please Note:The information given on this website is correct to the best of our knowledge and we cannot be held responsible for any discrepancies or changes to this information.