Wine, oil and honey may be stored and transported in large casks. Determining the volume in a cotainer can be difficult because of variation in units and terms.
The largest unit in England is the tun which has a volume of 210 Imperial gallons (4.54 liters per gallon) to 252 USA gallons (3.78 liters per gallon). Expression in liters may be more reliable (range 950 to 960 liters).
Term
Fraction of Tun
pipe or butt
1/2
puncheon or tertian
1/3
Hogshead
1/4
Tierce
1/6
Barrel
1/8
rundlet
1/14
Sester
1/60
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