These bulk containers shall be designed and constructed so as to be strong enough to withstand the
shocks and loadings normally encountered during carriage including, as applicable, transhipment
between modes of transport.
These bulk containers shall be approved by the competent authority and the approval shall include the
code for designating types of bulk containers in accordance with 220.127.116.11 and the requirements for
inspection and testing as appropriate.
Where it is necessary to use a liner in order to retain the dangerous goods it shall meet the provisions
Requirements for the design, construction, inspection and testing of BK3 flexible bulk containers
Design and construction requirements
Flexible bulk containers shall be sift-proof.
Flexible bulk containers shall be completely closed to prevent the release of contents.
Flexible bulk containers shall be waterproof.
Parts of the flexible bulk container which are in direct contact with dangerous goods:
(a) shall not be affected or significantly weakened by those dangerous goods;
(b) shall not cause a dangerous effect, e.g. catalysing a reaction or reacting with the dangerous
(c) shall not allow permeation of the dangerous goods that could constitute a danger under normal
conditions of carriage.
Service equipment and handling devices
Filling and discharge devices shall be so constructed as to be protected against damage during carriage
and handling. The filling and discharge devices shall be secured against unintended opening.
Slings of the flexible bulk container, if fitted, shall withstand pressure and dynamic forces, which can
appear in normal conditions of handling and carriage.
The handling devices shall be strong enough to withstand repeated use.
Inspection and testing