A useful for sending dangerous goods guide.

The International Maritime Dangerous Goods Code (IMDG Code) was developed as a uniform international code for the transport of dangerous goods by sea covering such matters as packing, container traffic and stowage, with particular reference to the separation of incompatible substances.















2.1 Flammable Compressed Gas
2.2 Non Flammable Compressed Gas
2.3 Poison Gas
3 Flammable Liquids
4.1 Flammable Solid
4.2 Spontaneously Combustible
4.3 Dangerous When Wet
5.1 Oxidising Agents
5.2 Organic Agents
6.1 Poisons
8 Corrosives
9 Miscellaneous Hazard



Cannot load together


Shipments of Dangerous Goods – Description of Classes

Class 2.1: Flammable gases

Gases which when mixed in a ratio equal to or less than 13% of its volume are flammable; or have a flammable range with air of at least 12%.

Class 2.2 Non-toxic, non-flammable gases:

Gases which dilute or replace the oxygen in the air; or are oxidizing – gases which may, by providing oxygen, cause or contribute to the combustion of other material; or gases which can not be ascribed to any of the other classes.

Class 2.3 Toxic Gases:

Toxic or corrosive gases are hazardous to human health or presumed to be toxic or corrosive to humans because they have a LC50 value exceeding 5000 ml / m3 (ppm).

Class 3: Flammable Liquids

Are liquids, mixtures of liquids or liquids containing solids in solution or suspension to or flammable vapors emitted below 61 ° C in sealed glass test, usually referred to as the “peak”. This also includes:

  • Liquids offered for transport at temperatures at or above its flash point
  • Substances that are transported or offered for transport at high temperatures in a liquid state, which give off a flammable vapor at a temperature at or below the maximum transport temperature.

Clase 4.1: Flammable solids, self-reactive substances and solid desensitised explosives:

Solids which, under conditions encountered in transport, possibly could ignite or cause or contribute to fire through friction caused during transport (solid and liquid) author reactive materials that are susceptible to a highly exothermic reaction; solid desensitized explosives which may explode if not diluted enough.

Class 4.2: Substances liable to spontaneous combustion:

Solids or liquids which are susceptible to spontaneous heating under conditions of carriage, heated in contact with air or may cause a fire.

Class 4.3: Substances which, in contact with water, emit flammable gases:

Substances (solids and liquids) that interact with water, can ignite spontaneously or emit flammable gases in dangerous quantities.

Class 5.1: Oxidising substances:

Substances that can cause or contribute to the combustion of other materials. Such substances may be contained in a commodity.

Class 5.2: Organic peroxides

Organic peroxides are thermally unstable substances which may undergo exothermic self-accelerating decomposition. They may have one or more of the following properties:

  • Burn rapidly;
  • Cause damage to the eyes;
  • Be sensitive to impact or friction;
  • Be subject to explosive decomposition;
  • React dangerously with other substances.

Clase 6.1: Toxic substances:

These substances can cause death, serious injury or harm human health if swallowed, inhaled or absorbed through skin contact.

Clase 8: Corrosive substances

Substances by chemical action can cause severe damage when in contact with living tissue or, if spilled, materially damage or even destroy other goods or the means of transport.

Class 9: Miscellaneous dangerous substances and articles:

Substances and articles which, during carriage, present a danger not covered by other classes.

The numerical order of the classes and divisions does not represent the degree of danger.