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The troy weight units are the grain, the pennyweight (24 grains), the troy ounce (20 pennyweights), and the troy pound (12 troy ounces). The troy grain is equal to the grain unit of the avoirdupois system, but the troy ounce is heavier than the avoirdupois ounce, and the troy pound is lighter than the avoirdupois pound. Legally, one troy ounce ...
English-speaking countries also used a system of units of fluid measure, or in modern terminology volume units, based on the apothecaries' system. Originally, the terms and symbols used to describe the volume measurements of liquids were the same as or similar to those used to describe weight measurements of solids [33] (for example, the pound by weight and the fluid pint were both referred to ...
A grain is a unit of measurement of mass, ... 120–1 The history of ... ounces was displaced by, variously, the pound of the Hanseatic League (16 tower ounces) and ...
Ethanolamine 1,000 mg (15 gr) Ethylenediamine 280 mg (4.3 gr) Sodium chloride 8,000 mg (120 gr) Disodium-Tetraborate-Decahydrate 2,650 mg (40.9 gr) Distilled water 1,000 mL (35 imp fl oz; 34 US fl oz) If Thiomersal is needed for preservation of the sample, add: Thiomersal 1,000 mg (15 gr)
In the apothecaries' system, which was widely used in the United States until the middle of the 20th century, [15] the dram is the mass of 1 ⁄ 96 pounds apothecaries (lb ap), or 1 ⁄ 8 ounces apothecaries (oz ap or ℥) [5]: C-7 (the pound apothecaries and ounce apothecaries are equal to the troy pound (lb t), and troy ounce (oz t ...
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A fluid ounce (abbreviated fl oz, fl. oz. or oz. fl.) is a unit of volume. An imperial fluid ounce is defined in British law as exactly 28.4130625 millilitres, [15] while a US customary fluid ounce is exactly 29.5735295625 mL, [16] and a US food labelling fluid ounce is 30 mL. [17]
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