Describes the requirements for steel open top drums of 200 litre [180 kg] nominal capacity with bottom end fixed in the following types of construction: a) Grade A - Drums of steel sheets of nominal thickness 1.25 mm for body and end, with bottom seam of either double seam construction or spiral/triple seam construction and top full size openable drum lid; and b) Grade B - Drums of steel sheets of nominal thickness 1.00 mm for body and end, with bottom end seam of spiral/triple seam construction and top full size openable lid.