measurement ton
The prime tariff unit for general maritime cargo, typically 40 ft3 (1.133~ m3), usually with concomitant weight restrictions, e.g. 1 long ton, reflecting the fact that, while a ship's hold capacity is limited by volume, the ship's buoyancy is limited by weight. See Table 47.
| UK | SI | US-C | ||||
|---|---|---|---|---|---|---|
| tea chest | … | … | … | … | 125.~ dm3 | 4.44~ ft3 |
| barrel bulk | … | … | … | 141.~ dm3 | 5 ft3 | |
| 7 | displacement ton | … | 0.991~ m3 | 35 ft3 | ||
| 9 | 8 | shipping ton | … | 1.13~ m3 | 40 ft3 | |
| 5:2 | register ton | 2.83~ m3 | 100 ft3 | |||
| 32 | twenty-foot unit | 36.2~ m3 | 1 280 ft3 |
