Convert Long Ton to Ton (assay) (UK)

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Long Ton

The long ton (symbol lt) is a unit of mass primarily used in the United Kingdom and some Commonwealth countries. It is equal to 2,240 pounds or approximately 1,016.05 kilograms. The long ton is part of the imperial system and is larger than both the short ton (used in the U.S.) and the metric ton.

Origin:

The long ton originated in medieval England as a standardized measure for trade, particularly for goods like coal and other bulk materials. It was defined as 20 long hundredweight, with each long hundredweight being 112 pounds. This measure became part of the British Imperial System in 1824 and has been widely used in maritime and industrial contexts, especially in the UK, before the metric system was more broadly adopted.

Ton (assay) (UK)

The ton assay (UK) is a unit of mass used in the United Kingdom, primarily in the context of assaying precious metals. It is equal to 29.16666667 kilograms or approximately 64.58333333 pounds. The ton assay is used to measure the mass of ore samples in the process of determining the content of precious metals.

Origin:

The ton assay originated in the United Kingdom as a unit of mass for assaying precious metals. It was defined as 29.16666667 kilograms or approximately 64.58333333 pounds. The term "ton assay" comes from the practice of assaying, which is the process of determining the content of precious metals in ore samples. The ton assay is used in the United Kingdom for this purpose.