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.
Drums of metal other than aluminium or steel
1N1 non-removable head
1N2 removable head
The body and heads shall be constructed of a metal or of a metal alloy other than steel or aluminium.
Material shall be of a suitable type and of adequate thickness in relation to the capacity of the drum
and to its intended use.
Chime seams, if any, shall be reinforced by the application of separate reinforcing rings. All seams, if
any, shall be joined (welded, solded, etc.) in accordance with the technical state of the art for the used
metal or metal alloy.
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 (1N1) drums
shall not exceed 7 cm in diameter. Drums with larger openings are considered to be of the removable
head type (1N2). 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 joined in place (welded, solded, etc.) in accordance with the technical state of the art
for the used metal or metal alloy so that the seam join is leakproof. Gaskets or other sealing elements
shall be used with closures, unless the closure is inherently leakproof.
Closure devices for removable head (1N2) 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.
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