IMO Classification

Class 1


1.1: Explosives with a mass explosion hazard
1.2: Explosives with a severe projection hazard
1.3: Explosives with a fire
1.4: Minor fire or projection hazard
1.5: An insensitive substance with a mass explosion hazard
1.6: Extremely insensitive articles

Class 2



2.1: Flammable Gas

2.2: Non-Flammable Gases

2.3: Poisonous Gases

Classs 3
Flammable Liquids


A flammable liquid means a liquid which may catch fire easily or any mixture having one or more components whith any flash point. As example: acetone, diesel, gasoline, kerosene, oil etc. There is strongly recomended for transportation at or above its flash point in a bulk packaging. There are three main groups of flammable liquid.

Low flash point – liquids with flash point below -18°C

Intermediate flash point – liquids with flash point from -18°C. up to +23°C

High flash point group – liquids with flash point from +23°C

Class 4
Flammable solids or substances


4.1: Flammable solids

4.2: Spontaneously combustible solids

4.3: Dangerous when wet

Class 5
Oxidizing substances and organic peroxides


5.1: Oxidizing agent

5.2: Organic peroxide oxidizing agent

Class 6
Toxic and infectious substances


6.1: Poison

6.2: Biohazard

Classs 7
Radioactive substances


Radioactive substances comprise substances or a combination of substances which emit ionizing radiation.

Class 8
Corrosive substances


Corrosive materials means a liquid or solid that causes full thickness destruction of human skin at the site of contact within a specified period of time. A liquid that has a severe corrosion rate on steel or aluminum is also a corrosive material.

Class 9
Miscellaneous dangerous substances and articles


A material which presents a hazard during transportation but which does not meet the definition of any other hazard class. This class includes: any material which has an anesthetic, noxious or other similar property which could cause extreme annoyance or discomfort to a flight crew member so as to prevent the correct performance of assigned duties or material for an elevated temperature material, a hazardous substance, a hazardous waste, or a marine pollutant.

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