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Symbol | Definition |
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≡ | exactly equal |
≈ | approximately equal to |
= | equal to |
digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |
The cup currently used in the United States for nutrition labelling is defined in United States law as 240 ml.
1 U.S. "legal" cup | = | 240 | millilitres |
= | 16 | international tablespoons | |
= | 12 | Australian tablespoons | |
≈ | 8.12 | U.S. customary fluid ounces | |
≈ | 8.45 | imperial fluid ounces |
The ale or beer firkin (from Middle Dutch vierdekijn meaning "fourth") is a quarter of an ale or beer barrel or half a kilderkin. This unit is much smaller than the wine firkin. Casks in this size (themselves called firkins) are the most common container for cask ale.