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The quart (symbol: qt) [1] is a unit of volume equal to a quarter of a gallon. Three kinds of quarts are currently used: the liquid quart and dry quart of the US customary system and the imperial quart of the British imperial system. All are roughly equal to one liter. It is divided into two pints or (in the US) four cups. Historically, the ...
The system can be traced back to the measuring systems of the Hindus [18]: B-9 and the ancient Egyptians, who subdivided the hekat (about 4.8 litres) into parts of 1 ⁄ 2, 1 ⁄ 4, 1 ⁄ 8, 1 ⁄ 16, 1 ⁄ 32, and 1 ⁄ 64 (1 ro, or mouthful, or about 14.5 ml), [19] and the hin similarly down to 1 ⁄ 32 (1 ro) using hieratic notation, [20] as ...
c. 74) declared that, for measures of liquids and unheaped dry volume, a 'quarter' equals eight bushels (64 imperial gallons (290.95 L), where a gallon is defined as a volume of water weight ten troy pounds). [12] The term pail is also used for this unit of dry volume. [13] The 1824 Act delegitimised all previous definitions.
1 US gill ≡ 4 US fluid ounces ≡ 1 / 32 US gallon ≡ 1 / 8 US liquid quart ≡ 1 / 4 US liquid pint ≡ 1 / 2 US cup ≡ 8 US tablespoons ≡ 24 US teaspoons ≡ 32 US fluid drams: ≡ 118.29411825 mL [b] ≈ 4.163 3709 imperial fluid ounces: ≈ 0.026 0211 imperial gallons: ≈ 0.104 0843 imperial quarts ≈ ...
1 ⁄ 7000 of a pound Dram/drachm (dr) ≈1.772 g: sixteenth of an ounce (possibly originated as the weight of silver in Ancient Greek coin drachma) Ounce (oz) ≈28.35 g: 1 oz = 16 dr = 437.5 grains Pound (lb) ≈453.6 g: 1 lb = 16 oz = 7000 grains ('lb' is an abbreviation for the Ancient Roman unit libra) Stone (st) 6.35 kg
On 7 April 1795, the metric system was formally defined in French law using six units. Three of these are related to volume: the stère (1 m 3) for volume of firewood; the litre (1 dm 3) for volumes of liquid; and the gramme, for mass—defined as the mass of one cubic centimetre of water at the temperature of melting ice. [10]
An imperial fluid ounce is 1 ⁄ 20 of an imperial pint, 1 ⁄ 160 of an imperial gallon, or exactly 28.4130625 mL. A US customary fluid ounce is 1 ⁄ 16 of a US liquid pint , 1 ⁄ 128 of a US gallon , or exactly 29.5735295625 mL, making it about 4.084% larger than the imperial fluid ounce.
US dry barrel: 7,056 cubic inches (115.6 litres; 3.3 US bushels) . Defined as length of stave 28 + 1 ⁄ 2 in (72 cm), diameter of head 17 + 1 ⁄ 8 in (43 cm), distance between heads 26 in (66 cm), circumference of bulge 64 in (160 cm) outside measurement; representing as nearly as possible 7,056 cubic inches; and the thickness of staves not greater than 4 ⁄ 10 in (10 mm) [2] (diameter ≈ ...