Dangerous Cargoes


For all modes of transport (sea, air, rail, road and inland waterways) the classification (grouping) of dangerous goods, by type of risk involved, has been drawn up by the UNITED NATIONS Committee of Experts on the Transport of Dangerous Goods (UN). Based on this framework of grouping and for the purpose of carriage by sea, IMO Classes comprise the following, which are further subdivided as indicated:
Dangerous goods, marine pollutants and material hazardous only in Bulk (MHB)

Please Note: New printed labels of IMO classes 2, 3, 4, 5, 6, 8 and 9 are without text.
For maritime transport these goods, materials or articles are classified and further divided as follows:


  Class 1 Explosives
 1.1-I 1.1 Substances and articles which have a mass explosion hazard.
 1.2-I 1.2 Substances and articles which have a projection hazard but not a mass explosion hazard.
 1.3-I 1.3 Substances and articles which have a fire hazard and either a minor blast hazard or a minor projection hazard or both, but not a mass explosion hazard.
 1.4-I 1.4 Substances and articles which present no significant hazard.
 1.5D-I 1.5 Very insensitive substances which have a mass explosion hazard.
1.6N-I 1.6 Extremely insensitive articles which do not have a mass explosion hazard.
  Class 2 Gases: Compressed, Liquefied or Dissolved under Pressure
2.1 2.1 Flammable gases
2.2NFG 2.2 Non-Flammable gases
2.2OX 2.3 Toxic gases
Class 3





Flammable Liquids
  Class 4 Flammable Solids or Substances
4.1-I 4.1 Flammable solids
4.2-I 4.2 Substances liable to spontaneous combustion.
4.3-I 4.3 Substances which, in contact with water, emit flammable gases.
  Class 5 Oxidizing Substances (agents) and Organic Peroxides
 5.1-I 5.1 Oxidizing substances (agents) by yielding oxygen increase the risk and intensity of fire.
 5.2-I 5.2 Organic peroxides – most will burn rapidly and are sensitive to impact or friction.
  Class 6 Toxic and infectious Substances
 6.1IH-I 6.1 Toxic substances
66 6.2 Infectious substances
7-I Class 7 Radioactive Substances
8-I Class 8 Corrosives
9CA 9 Class 9 Miscellaneous dangerous substances and articles *
Materials hazardous only in bulk **
* Marine pollutants which are not of an otherwise dangerous nature are listed in class 9
** The regulations for materials hazardous only in bulk are not applicable to these materials when they are carried in closed freight containers, however, many precautions may have to be observed