In Cuba, a unit of mass, 20th century, = 2240 libras españolas = 1030.4 kilograms. Literally translated, a “Spanish large ton,” but it is often referred to in English as the “Spanish long ton.”
The “2240” comes from the number of pounds avoirdupois in the American long ton; but the place of the pound is taken by the “libras españolas” rated at 460.00 grams. The result is a unit with a mass of 1030.4 kilograms. Technical Factors... describes this as “1.304 toneladas”, but that would be true only if the tonelada were the metric tonelada of 1000 kilograms, not the Cuban tonelada of 920.18 kg.
United Nations, 1966.
Technical Factors..., 1972, page 132.
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Last revised: 31 December 2007.