Editing Butt (unit) (section)

==Equivalents==
A butt approximately equated to {{convert|108|impgal|USgal l|0|abbr=off|lk=on}} for [[ale]] or {{convert|105|impgal|USgal l|0|abbr=off}} for [[wine]] (also known as a ''pipe''), although the ''[[Oxford English Dictionary]]'' notes that "these standards were not always precisely adhered to".<ref name="oed">{{cite book|title=Oxford English Dictionary|url=http://www.oed.com/view/Entry/25362|chapter=Butt, n.2}}</ref><ref name="ciphering">{{cite book|title=Ciphering made easy, or, An attempt to render simple and interesting the first four rules of arithmetic.|date=1833|page=84|author=Ciphering|isbn=978-0559229732|url=https://books.google.com/books?id=egTQ97Zf5k8C&q=butt%20dry%20measure&pg=PA84|accessdate=2016-03-18}}</ref>

The butt is one in a series of [[English wine cask units]], being half of a ''[[tun (unit)|tun]]''.{{citation needed|date=May 2019}}