|
IMO Class |
Description |
|
Class 1 |
Explosives |
|
1.1 |
Substances and articles which have a mass explosion hazard. |
|
1.2 |
Substances and articles which have a projection hazard but
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 hazard or both,
but not a mass explosion hazard. |
|
1.4 |
Substances 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: Compressed, Liquefied or Dissolved under Pressure |
|
2.1 |
Flammable gases |
|
2.2 |
Non-Flammable gases |
|
2.3 |
Toxic gases |
|
Class 3 |
Flammable Liquids |
|
3.1 |
Low flash-point group of liquids (flash-point below -18?C.) |
|
3.2 |
Intermediate flash-point group of liquids (flash-point of
-18?C. up to but not incl. +23?C.) |
|
3.3 |
High flash-point group of liquids (flash-point of +23?C. up
to and incl. +61?C.) |
|
Class 4 |
Flammable Solids or Substances |
|
4.1 |
Flammable solids |
|
4.2 |
Substances liable to spontaneous combustion |
|
4.3 |
Substances which, in contact with water, emit flammable
gases. |
|
Class 5 |
Oxidizing Substances (agents) and Organic Peroxides |
|
5.1 |
Oxidizing substances (agents) by yielding oxygen increase
the risk and intensity of fire |
|
5.2 |
Organic peroxides - most will burn rapidly and are sensitive
to impact or friction |
|
Class 6 |
Toxic and infectious Substances |
|
6.1 |
Toxic substances |
|
6.2 |
Infectious substances |
|
Class 7 |
Radioactive Substances |
|
Class 8 |
Corrosives |
|
Class 9 |
Miscellaneous dangerous substances and articles * |
|
MHB |
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 |
|
