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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 ...
1 ⁄ 2 tsp [23] 1 ⁄ 16: 2 coffeespoons = 1 teaspoon teaspoon (kitchen spoon, splash) tsp. or t. 1 fluid dram or 5 mL [10] most common size: 80 minims or 3 mL [17] 1 fluidrachm or 4 mL, [11] or 3.75 mL [18] (actual range: 4.6–5.5 mL [12]) 1 ⁄ 3 tablespoon or 1 ⁄ 6 fl oz 1 fl dram or 5 mL, [13] 1 ⁄ 6 fl oz, [15] 1 1 ⁄ 3 fl dr 1 ⁄ 8 ...
Prior to the adoption of the unit of the minim in the early 19th century, the smallest unit of fluid measure in the Apothecaries' systems of the United States customary units and pre-1824 English units was, while inexact, presumed to be equal to 1 / 60 of a fluid dram or 1 / 480 of a fluid ounce.
The specific weight, also known as the unit weight (symbol γ, the Greek letter gamma), is a volume-specific quantity defined as the weight W divided by the volume V of a material: = / Equivalently, it may also be formulated as the product of density, ρ, and gravity acceleration, g: = Its unit of measurement in the International System of Units (SI) is newton per cubic metre (N/m 3), with ...
Trisodium phosphate (TSP) is an inorganic compound with the chemical formula Na 3 P O 4. It is a white, granular or crystalline solid, highly soluble in water, producing an alkaline solution. TSP is used as a cleaning agent , builder , lubricant , food additive , stain remover , and degreaser .
In the 18th century, the table-spoon became an unofficial unit of the apothecaries' system of measures, equal to 4 drams ( 1 / 2 fl oz, 14.8 ml). It was more commonly known by the Latin name cochleare majus (abbreviated cochl. maj.) or, in apothecaries' notation, f℥ss or f℥ß (fluid ℥, i.e. ounce, semis, one-half).
As a unit of Apothecary measure, the dessert-spoon was an unofficial but widely used unit of fluid measure equal to two fluid drams, or 1 / 4 fluid ounce. [4] However, even when approximated, its use was discouraged: "Inasmuch as spoons vary greatly in capacity, and from their form are unfit for use in the dosage of medicine, it is ...
3.696 691 195 3125 ml in the U.S. customary system [5]: C-5, C-12 3.551 632 8125 ml in the British Imperial system [5]: C-7 [18] A teaspoonful has been considered equal to one fluid dram for medical prescriptions. [19] However, by 1876 the teaspoon had grown considerably larger than it was previously, measuring 80–85 minims. [20]