UK Barrels
A UK barrel is 36 imperial gallons (not to be confused with American gallons), about 163.659 liters or 0.163659 cubic meters. It is based on the traditional wine barrel used in the United Kingdom.
US tablespoons
A US tablespoon is a volume unit in the United States used for cooking and baking. One US tablespoon is about 14.79 milliliters.