| 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 |
|
