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Appendix 1: Classes of Dangerous Goods

Dangerous goods are articles or substances, which are capable of posing a risk to
health, safety, property or the environment and which are shown in the list of dangerous
goods in the regulations or which are classified according to the regulations (IATA DGR
1.0).

Dangerous goods are defined as those goods which meet the criteria of one or more of
the nine UN hazard classes and, where applicable, to one of three UN packing groups
according to the provisions of this section. The nine classes relate to the type of hazard,
whereas the packing groups relate to the applicable degree of danger within the class.
(IATA DGR 3.0.1.1). Some of the 9 nine classes are broken down into divisions.

A. The nine classes of dangerous goods

Class 1: Explosives

1.1 Mass explosion hazard
1.2 Projection hazard but not a
mass explosion hazard
1.3 Fire hazard, minor blast hazard, and/ or a minor projection hazard
but not a mass explosion hazard
1.4 No significant hazard
1.5 Very insensitive, mass explosion hazard
1.6 Extremely insensitive explosive, no mass explosion hazard

Class 2: Gases

2.1 Flammable gas
2.2 Non-flammable, non toxic gas

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