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CLASS 6 - TOXIC AND INFECTIOUS SUBSTANCES
6. Class 6 is subdivided into two classes as follows:

Class 6.1 - Toxic substances
These are substances liable either to cause death or serious injury or to harm human health if swallowed or inhaled, or by skin contact.

Class 6.2 - Infectious substances
These are substances known or reasonably expected to contain pathogens. Pathogens are defined as micro-organisms (including bacteria, viruses, rickettsiae, parasites, fungi) and other agents such as prions, which can cause disease in humans or animals.