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Subject: units to consider for Enumerated Root Unit list
Dear colleagues, This is part of the asynchronous UnitsML TC meeting that continues until 5:00 pm, Wednesday, August 31, 2011. Since I'm the chair of the committee, I cannot make a motion. If someone deems it appropriate, please make a motion during this asynchronous portion of the meeting. The units below came from a list of the most common 500 units from the Wolfram|Alpha website interface. I was hoping to distill the list down more, but have run out of time. [I will be out of the office until Monday, August 29 (and maybe later if Hurricane Irene delays my return).] I think most of these units can be ignored, but we probably should at least consider modifying the root unit list, particularly for the 'pound', which is ambiguous. It might work well for someone to trim the list considerably and then continue the email conversation using the reduced list. I have included some units from the Root Unit list, labelled (eru: xxx). Comment: In the Enumerated Root Unit (eru) list, we have many "us_xxx" units. We have only 5 imperial units: gallon, gill, ounce, pint & quart. Should we add more "imperial_xxx" units? Thanks for considering this request, Bob List of Units absolute magnitude apparent magnitude amino acid Avogadro constant value Avogadro number value Bohr magneton Bohr radius Boltzmann constant unit character units classical electron radius conversion module angular degree (eru: arc_degree) grad (eru: gon) British pound (eru: pound, troy_pound) atmosphere (eru: technical_atmosphere) atomic mass units chemical barrel barrel of oil (eru: petro_barrel) baud brake horsepower horsepower mechanical (eru: boiler_horsepower, horsepower, electric_horsepower, metric_horsepower, uk_horsepower, water_horsepower) butt us century cubit dalton (or unified atomic mass unit) decibel (dB) decibel m (dBm) decibel spl (dB sound pressure level) decibel w (DB) degree Smurdley diopter dirac dots per inch (dpi) dozen (dz) emu of charge equivalents (eq) esu of charge esu of potential difference faraday fathom franklin furlong gold ounce Greek stadion hand hin hour of right ascension dietary Calorie jansky (Jy) Julian year (eru: sidereal_year, tropical_year, year_365) league leap year leo light hour light minute light second mach speed mass percent mesopotamian load metabolic equivalent metric drop mil molar month parts per million (ppm) percent phon pond Danish pot proof pyeong quadrant revolution (or rotation) rod solar luminosity (& solar mass, solar radii) span standard stone volume percent week
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