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Topic: Apothecaries system of mass


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In the News (Tue 7 Jul 09)

  
  Ounce
The ounce is the name for a number of different units of mass ('''oz'''), and also of two units of fluid volume ('''fl oz''') and of one unit of force, the '''ounce-force''' ('''ozf''').
apothecaries' ounce defined by the now-obsolete apothecaries' system of mass.
The ounce-force (see pound-force) is the force exerted by a mass of 1 oz avoirdupois at the standard acceleration of gravity, usually borrowing the value which is official for defining kilograms-force, 9.80665 m/s².
www.seattleluxury.com /encyclopedia/entry/ounce   (444 words)

  
 Online Conversion - The Imperial Units
The distinction between this imperial system and the U.S. customary units (also called standard units there) or older British/English units/systems and newer additions (foot-pound-second systems) is often not drawn precisely.
In all the systems, the fundamental unit is the pound, and all other units are defined as fractions or multiples of it.
Imperial units were eliminated from all road signs, although both systems of measurement will still be found on privately-owned signs (such as the height warnings at the entrance of a multi-storey parking facility).
www.onlineconversion.com /article_UK_units.htm   (967 words)

  
  Apothecaries' system - Wikipedia, the free encyclopedia
The system was closely related to the troy system of mass, having identically sized pounds and ounces, but the two systems differed in how the ounce was subdivided.
During the first half of the 20th century, the apothecaries' system was replaced by the metric system.
After the introduction of the imperial gallon (1824), some English apothecaries started using a system of volume that was closely related to the system of mass, taking advantage of the approximate equivalence of weight and volume of water and similar fluids with equal-named units.
en.wikipedia.org /wiki/Apothecaries'_system_of_mass   (186 words)

  
 Weights Used for Precious Metals, Gemstones, Coins
A slug is a unit of mass equal to 14.5939029372064 kilogrammes, and is the official unit of mass in the Imperial system.
Apothecaries weights in which an ounce was 480 grains as for troy measure, but with 8 drams or drachms per ounce, therefore a drachm was 60 grains.
Of all the above weight systems, it appears that the apothecaries system is by far the most confusing, perhaps we should conclude that they had the most reason to confuse or mislead their customers.
www.24carat.co.uk /weights.html   (1567 words)

  
 Mass
The avoirdupois weight system is used by the USS (U.S. System) and the British IS (Imperial System).
The apothecaries' mass system was used by pharmacists and chemists.
The apothecaries' system has the same troy pound and troy ounces but then subdivides differently.
www.georgehernandez.com /h/xzMisc/Measurements/Mass.htm   (385 words)

  
 A Dictionary of Measures, Units and Conversions
It is the mass of an international prototype in the form of a platinum-iridium cylinder kept at Sevres in France.
As with the UK system these measures were originally defined by physical standard measures - the yard, the pound, the gallon and the bushel.They are now all defined by reference to the S I measures of the metre, the kilogram and the litre.
When the metric system was introduced in the 1790's the litre was intended to match up with the volume occupied by 1 kilogram of pure water at a specified pressure and temperature.
www.ex.ac.uk /cimt/dictunit/dictunit.htm   (5915 words)

  
 ConvertPlus.com - Online weights and measurements conversion
And the popularity of the Convert Plus has grown such that there now over 30,000 people every week using it.
In the U.S. and Great Brinain fuel consumption is usually measured in MPG (miles per gallon) while in the rest of the world it is mostly measured in litres per 100 kilometers.
Convert weight measures, including metric conversion, Avoirdupois (U.S.), Troy, Apothecaries, Japanese, Chinese, Thai, old Russian, ancient Greek and Roman units.
www.convertplus.com /en   (330 words)

  
 Online conversion of weights and measures, measurement conversion.
Metric conversion, Avoirdupois (U.S.), Troy, Apothecaries, Japanese, Chinese, Thai, old French, old Russian, ancient Greek and Roman, Biblical, etc.
Other units can be added if needed, feel free to suggest.
Conversions of flow rate (transfer rate) units based on mass.
www.convert-me.com /en   (877 words)

  
 Convert-me.Com: List of Supported Units
British (Imperial) And U.S. System // Distance and Length
Typographical (Europe - Didot system) // Distance and Length
Avoirdupois (U.S. / British) // Mass and Weight
www.convert-me.com /en/unitlist.html   (783 words)

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