A large means of containment has a capacity greater than 450 litres. Placards representing the various chemical hazards are placed on all four sides of large means of containment or transport units. Placards can be used to represent both the primary and the subsidiary class of the dangerous goods in transport.
Large means of containment can be:
tote tanks,
- inter modal tanks,
- portable tanks,
- intermediate bulk containers (IBC),
- freight containers,
- road and
- rail vehicles.
