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Barrel (unit) - Definition and Overview |
| Related Words: Acres, Bag, Bags, Barb, Barrels, Basket, Boom, Bottle, Box, Brush, Burden, Bushel, Butt, Can, Capsule, Carton, Case, Cask, Cilium |
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See Barrel for other uses.
The barrel is the name of several units of measurement.
- A barrel of crude oil or other petroleum product (abbreviated bbl) is 42 US gallons (158.97 litres), or 35 Imperial gallons. The measurment originated in the early Pennsylvania oil fields. Both the 42 gallon barrels (based on the old English wine measure, the tierce) and the 40 gallon (5 US bushels or 151.40 liters) whiskey barrels were used. The 40 gallon barrel was the most common size early, but by 1866 the oil barrel was standardized at 42 gallons.
- In the UK, a standard beer barrel is 36 UK gallons, about 164 litres.
- In the US, a standard beer barrel is 31.5 US gallons, about 119 litres.
- In the US, a standard barrel is also equivalent to 105 dry quarts.
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