Dangerous Goods by Road
Chimes shall be mechanically seamed or welded. Separate reinforcing rings may be applied.
The body of a drum of a capacity greater than 60 litres shall, in general, have at least two expanded
rolling hoops or, alternatively, at least two separate rolling hoops. If there are separate rolling hoops
they shall be fitted tightly on the body and so secured that they cannot shift. Rolling hoops shall not be
spot welded.
Openings for filling, emptying and venting in the bodies or heads of non-removable head (1A1) drums
shall not exceed 7 cm in diameter. Drums with larger openings are considered to be of the removable
head type (1A2). Closures for openings in the bodies and heads of drums shall be so designed and
applied that they will remain secure and leakproof under normal conditions of carriage. Closure
flanges may be mechanically seamed or welded in place. Gaskets or other sealing elements shall be
used with closures, unless the closure is inherently leakproof.
Closure devices for removable head (1A2) drums shall be so designed and applied that they will
remain secure and drums will remain leakproof under normal conditions of carriage. Gaskets or other
sealing elements shall be used with all removable heads.
If materials used for body, heads, closures and fittings are not in themselves compatible with the
contents to be carried, suitable internal protective coatings or treatments shall be applied. These
coatings or treatments shall retain their protective properties under normal conditions of carriage.
Maximum capacity of drum: 450 litres.
Maximum net mass: 400 kg.
Aluminium drums
1B1 non-removable head
1B2 removable head
Body and heads shall be constructed of aluminium at least 99% pure or of an aluminium base alloy.
Material shall be of a suitable type and of adequate thickness in relation to the capacity of the drum
and to its intended use.
All seams shall be welded. Chime seams, if any, shall be reinforced by the application of separate
reinforcing rings.
The body of a drum of a capacity greater than 60 litres shall, in general, have at least two expanded
rolling hoops or, alternatively, at least two separate rolling hoops. If there are separate rolling hoops
they shall be fitted tightly on the body and so secured that they cannot shift. Rolling hoops shall not be
spot welded.
Openings for filling, emptying and venting in the bodies or heads of non-removable head (1B1) drums
shall not exceed 7 cm in diameter. Drums with larger openings are considered to be of the removable
head type (1B2). Closures for openings in the bodies and heads of drums shall be so designed and
applied that they will remain secure and leakproof under normal conditions of carriage. Closure
flanges shall be welded in place so that the weld provides a leakproof seam. Gaskets or other sealing
elements shall be used with closures, unless the closure is inherently leakproof.
Closure devices for removable head (1B2) drums shall be so designed and applied that they will
remain secure and drums will remain leakproof under normal conditions of carriage. Gaskets or other
sealing elements shall be used with all removable heads.
Maximum capacity of drum: 450 litres.
Maximum net mass: 400 kg.