is billed either in weight tons or volume
(measurement) tons, depending on the density
of the material
or the manner in which it is shipped (containerized, break bulk
, bulk). Weight ton
equals (1) 2,000 pounds (short ton), (2) 2,240 pounds (long ton), or (3) 1,000 Kilo or 2,204.68 pounds (metric ton). Measurement ton
equals (1) 40 cubic feet (1.12 cubic meters), or (2) 1 cubic meter (35.3 cubic feet).