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  2. Barrel (unit) - Wikipedia

    en.wikipedia.org/wiki/Barrel_(unit)

    A barrel is one of several units of volume applied in various contexts; there are dry barrels, fluid barrels (such as the U.K. beer barrel and U.S. beer barrel), oil barrels, and so forth. For historical reasons the volumes of some barrel units are roughly double the volumes of others; volumes in common use range approximately from 100 to 200 ...

  3. English brewery cask units - Wikipedia

    en.wikipedia.org/wiki/English_brewery_cask_units

    As with the hogshead, the ale barrel underwent various redefinitions. Initially 32 ale or beer gallons (147.9 L), it was redefined in 1688 as 34 ale or beer gallons (157.1 L), and again in 1803 as 36 ale or beer gallons (166.4 L). barrel (Beer) The beer barrel was defined as 36 ale or beer gallons until the adoption of the imperial system.

  4. Barrel - Wikipedia

    en.wikipedia.org/wiki/Barrel

    Traditional oak barrels made by Chilean cooperage Tonelería Nacional Mackmyra barrels at Hackeberga Castle Modern stainless steel casks and kegs outside the Castle Rock microbrewery in Nottingham, England Wooden wine barrel at an exhibition in Croatia. A barrel or cask is a hollow cylindrical container with a bulging center, longer than it is ...

  5. Barrel of oil equivalent - Wikipedia

    en.wikipedia.org/wiki/Barrel_of_oil_equivalent

    All those multiples are commonly combined with barrel of oil equivalent from the level of individual production units output per day to level of petroleum reserves. Metric regions commonly use the tonne of oil equivalent (toe), or more often million toe (Mtoe). Since this is a measurement of mass, any conversion to barrels of oil equivalent ...

  6. Hogshead - Wikipedia

    en.wikipedia.org/wiki/Hogshead

    A hogshead in relation to other barrels. A hogshead (abbreviated "hhd", plural "hhds") is a large cask of liquid (or, less often, of a food commodity). It refers to a specified volume, measured in either imperial or US customary measures, primarily applied to alcoholic beverages, such as wine, ale, or cider.

  7. Drum (container) - Wikipedia

    en.wikipedia.org/wiki/Drum_(container)

    A drum (also called a barrel) is a cylindrical shipping container used for shipping bulk cargo. Drums can be made of steel , dense paperboard (commonly called a fiber drum ), or plastic , and are generally used for the transportation and storage of liquids and powders.

  8. Bore evacuator - Wikipedia

    en.wikipedia.org/wiki/Bore_evacuator

    Animated sequence of how a bore evacuator works. A bore evacuator. A bore evacuator or fume extractor is a device which removes lingering gases and airborne residues from the barrel of an armored fighting vehicle's gun after firing, particularly in tanks and self-propelled guns.

  9. Oil reserves in Saudi Arabia - Wikipedia

    en.wikipedia.org/wiki/Oil_reserves_in_Saudi_Arabia

    The proven oil reserves in Saudi Arabia are reportedly the second largest in the world, estimated in 2017 to be 268 billion barrels (4.3×10^10 m 3) (Gbbl hereafter), including 2.5 Gbbl in the Saudi–Kuwaiti neutral zone. This would correspond to more than 50 years of production at current rates.