2.1 Portable tanks should be capable of being
loaded and discharged without the need of removal of their structural
equipment and be capable of being lifted onto and off the ship when
loaded.
2.2 The applicable requirements of the International
Convention for Safe Containers, 1972, as amended, should be fulfilled
by any tank-container which meets the definition of a container within
the terms of that Convention. Additionally, the provisions of part
6 of the IMDG Code should be met when the tank will be used for the
transport of dangerous goods.
2.3 Portable tanks should not be offered for shipment
in an ullage condition liable to produce an unacceptable hydraulic
force due to surge within the tank.
2.4 Portable tanks for the transport of dangerous
goods should be certified in accordance with the provisions of the
IMDG Code by the competent approval authority or a body authorized
by that authority.