A liquid, a gas or combination thereof.
- Corrosive fluids – Corrosive fluids, excluding seawater, are those possessing in their original state the property of being able through chemical action to cause damage by coming into contact with the ship or its cargo, when escaped from their containment.
- Toxic fluids – The fluids that are liable to cause death or severe injury to human health if swallowed or inhaled or by skin contact.