Fluid ounce
From Free net encyclopedia
A fluid ounce (also known as a fluidounce) is a unit of volume in both the Imperial system of units and the U.S. customary units system. However, the two measures are not quite the same:
- The Imperial fluid ounce is 1/160 of an imperial gallon or 8 fluid drams, about 1.734 cubic inches or 28.4130625 millilitres.<ref>Template:Cite web</ref> This volume of water weighs very nearly 1 avoirdupois ounce (it is the volume occupied by one ounce at 62 °F, weighed in air with brass weights).
- The U.S. fluid ounce is defined to be 1/128 of a U.S. fluid gallon, exactly 1.8046875 cubic inches or 29.5735295625 milliliters. This volume of cool, pure water weighs about 1.04 avoirdupois ounces (29.5 g).
- U.S. regulation 21CFR101.9(b)(5)(viii) also defines a fluid ounce of exactly 30 mL, for use in nutrition labeling.<ref>Template:Cite web</ref>
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External links
es:Onza líquida fr:Once liquide ja:液量オンス nl:Fluid ounce simple:Fluid ounce