Specific requirements for fibreboard IBCs

These requirements apply to fibreboard IBCs for the carriage of solids which are filled or discharged
by gravity. Fibreboard IBCs are of the following type: 11G.

Fibreboard IBCs shall not incorporate top lifting devices.

The body shall be made of strong and good quality solid or double-faced corrugated fibreboard (single
or multiwall), appropriate to the capacity of the IBC and to its intended use. The water resistance of
the outer surface shall be such that the increase in mass, as determined in a test carried out over a
period of 30 minutes by the Cobb method of determining water absorption, is not greater than
155 g/m2 (see ISO 535:1991). It shall have proper bending qualities. Fibreboard shall be cut, creased
without scoring, and slotted so as to permit assembly without cracking, surface breaks or undue
bending. The fluting or corrugated fibreboard shall be firmly glued to the facings.

The walls, including top and bottom, shall have a minimum puncture resistance of 15 J measured
according to ISO 3036:1975.

Manufacturing joins in the body of IBCs shall be made with an appropriate overlap and shall be taped,
glued, stitched with metal staples or fastened by other means at least equally effective. Where joins
are effected by gluing or taping, a water resistant adhesive shall be used. Metal staples shall pass
completely through all pieces to be fastened and be formed or protected so that any inner liner cannot
be abraded or punctured by them.

The liner shall be made of a suitable material. The strength of the material used and the construction
of the liner shall be appropriate to the capacity of the IBC and the intended use. Joins and closures
shall be siftproof and capable of withstanding pressures and impacts liable to occur under normal
conditions of handling and carriage.

Any integral pallet base forming part of an IBC or any detachable pallet shall be suitable for
mechanical handling with the IBC filled to its maximum permissible gross mass.

The pallet or integral base shall be designed so as to avoid any protrusion of the base of the IBC that
might be liable to damage in handling.

The body shall be secured to any detachable pallet to ensure stability in handling and carriage. Where
a detachable pallet is used, its top surface shall be free from sharp protrusions that might damage the

Strengthening devices such as timber supports to increase stacking performance may be used but shall
be external to the liner.

Where IBCs are intended for stacking, the bearing surface shall be such as to distribute the load in a
safe manner.

Specific requirements for wooden IBCs

These requirements apply to wooden IBCs for the carriage of solids which are filled or discharged by
gravity. Wooden IBCs are of the following types:
11C Natural wood with inner liner
11D Plywood with inner liner
11F Reconstituted wood with inner liner.

Wooden IBCs shall not incorporate top lifting devices.

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