The substances and articles og Class 9 are subdivided as follow:
- Substances which, on inhalation as fine dust, may endanger health;
- Substances and apparatus which, in the event of fire, may form dioxins;
- Substances evolving flammable vapour;
- Lithium batteries;
- Life-saving appliances;
- Environmentally hazardous substances:
Pollutant to the aquatic environment, liquid;
Pollutant to the aquatic environment, solid;
Genetically modified microorganism and organism;
- Elevated temperature substances, liquid and solid;
- Other substances presenting a danger during carriage, but not meeting the definitions of another class.