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*Subject*: **[OASIS Issue Tracker] Updated: (OFFICE-3492) Undefined units forConvert Function - NEEDS-DISCUSSION**

*From*:**OASIS Issues Tracker <workgroup_mailer@lists.oasis-open.org>***To*: office@lists.oasis-open.org*Date*: Tue, 2 Nov 2010 14:46:15 -0400 (EDT)

[ http://tools.oasis-open.org/issues/browse/OFFICE-3492?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] David Wheeler updated OFFICE-3492: ----------------------------------- Proposal: Here are the proposed changes to CONVERT. (Editor: This includes citations for some non-obvious values, if you need to change the citation format feel free. None of these citations are normative.) In row "ly" (light-year), append this to the Description: , exactly (299792458 m/s) (3600 s/hr) (24 hr/day) (365.25 day). (Source: International Astronomical Union (IAU), "Measuring the Universe: The IAU and astronomical units", http://www.iau.org/public/measuring/). In row "bushel", append this to the Description: , exactly 2150.42 cubic international inches. (Source: National Institute of Standards and Technology (NIST), Appendix C of NIST Handbook 44, "Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices", http://ts.nist.gov/WeightsAndMeasures/Publications/appxc.cfm) In row "parsec" or "pc", append this to the Description: , exactly AU/tan(1/3600 degree) where an AU is exactly 149,597,870.691 kilometers. (Source: International Astronomical Union (IAU), "Measuring the Universe: The IAU and astronomical units", http://www.iau.org/public/measuring/). A parsec is approximately 3.085677581E+16 m. In row "HP" (horsepower), REPLACE the old Description: Horsepower. The unit "h" is deprecated and should be replaced with "HP". with this Description: Mechanical horsepower aka Imperial horsepower. Exactly 550 foot-pounds per second. (SOURCE: National Institute of Standards and Technology (NIST), "The NIST Guide for the Use of the International System of Units", section B.9, http://physics.nist.gov/Pubs/SP811/appenB9.html). A horsepower is approximately 745.699871582 W. ("Unit Conversion Utility", http://www.metas.ch/metasweb/Themen/Masseinheiten/calculation/en_calculation_frame_umrechnungen.html) The unit "h" is deprecated and should be replaced with "HP". {NOTE: Wikipedia has a better description of horsepower, and we could cite a specific dated version, but some people have a Wikipedia allergy so I'm not citing http://en.wikipedia.org/wiki/Horsepower even though it is a far better source of information.). In row "PS" (horsepower), append this to the Description: , the amount of power to lift a mass of 75 kilograms in one second against the earth gravitation between a distance of one meter, approximately 735.49875 W (SOURCE: "Die gesetzlichen Einheiten in Deutschland" http://www.ptb.de/de/publikationen/download/pdf/einheiten.pdf ). {I can't read German, but I think this is accurate. Again, the Wikipedia article is more substantive: http://en.wikipedia.org/wiki/Horsepower but Wikipedia then cites this German document, so I'm trying to cite the authoritative source.} In row "uk_gal" (UK/Imperial gallon), append this to the Description: , exactly 4.54609 liters. {I'm having trouble getting an authoritative source, so let's just use this. This can be computed from the existing text. This page: http://en.wikipedia.org/wiki/Imperial_units claims that "The Weights and Measures Act of 1985 switched to a gallon of exactly 4.54609 l" Unfortunately, later versions have removed that definition, so I didn't find its definition here: http://www.statutelaw.gov.uk/content.aspx?activeTextDocId=2191980 } In row "uk_qt" (UK/Imperial quart), append this to the Description: , exactly 1/4 of a UK gallon. In row "uk_pt" (UK/Imperial pint), append this to the Description: , exactly 1/8 of a UK gallon. In row "pond", append this to the Description: , 9.80665E-3 N. {The most complete source of information on "pond" that I found was: http://en.wikipedia.org/wiki/Kilopond - I'm sure there are better sources, please assist if you can. However, this is completely consistent with the OOo value of "pond", where 1 N = 101.9716 pond, so I take this as confirmed. This is consistent with the official value of the Earth's gravitational force as defined by the third CGPM (1901, CR 70) definition of standard gravity, gn=9.80665 m/s2.} After the end of the first table in CONVERT, state: "If a conversion factor (as listed above) is not exact, an implementation may use a more accurate conversion factor instead." was: Here are the proposed changes to CONVERT. (Editor: This includes citations for some non-obvious values, if you need to change the citation format feel free. None of these citations are normative.) In row "ly" (light-year), append this to the Description: , exactly (299792458 m/s) (3600 s/hr) (24 hr/day) (365.25 day). (Source: International Astronomical Union (IAU), "Measuring the Universe: The IAU and astronomical units", http://www.iau.org/public/measuring/). In row "bushel", append this to the Description: , exactly 2150.42 cubic international inches. (Source: National Institute of Standards and Technology (NIST), Appendix C of NIST Handbook 44, "Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices", http://ts.nist.gov/WeightsAndMeasures/Publications/appxc.cfm) In row "parsec" or "pc", append this to the Description: , exactly AU/tan(1/3600 degree) where an AU is exactly 149,597,870.691 kilometers. (Source: International Astronomical Union (IAU), "Measuring the Universe: The IAU and astronomical units", http://www.iau.org/public/measuring/). A parsec is approximately 3.085677581E+16 m. In row "HP" (horsepower), REPLACE the old Description: Horsepower. The unit "h" is deprecated and should be replaced with "HP". with this Description: Mechanical horsepower aka Imperial horsepower. Exactly 550 foot-pounds per second. (SOURCE: National Institute of Standards and Technology (NIST), "The NIST Guide for the Use of the International System of Units", section B.9, http://physics.nist.gov/Pubs/SP811/appenB9.html). A horsepower is approximately 745.699871582 W. ("Unit Conversion Utility", http://www.metas.ch/metasweb/Themen/Masseinheiten/calculation/en_calculation_frame_umrechnungen.html) The unit "h" is deprecated and should be replaced with "HP". {NOTE: Wikipedia has a better description of horsepower, and we could cite a specific dated version, but some people have a Wikipedia allergy so I'm not citing http://en.wikipedia.org/wiki/Horsepower even though it is a far better source of information.). In row "PS" (horsepower), append this to the Description: , the amount of power to lift a mass of 75 kilograms in one second against the earth gravitation between a distance of one meter, approximately 735.49875 W (SOURCE: "Die gesetzlichen Einheiten in Deutschland" http://www.ptb.de/de/publikationen/download/pdf/einheiten.pdf ). {I can't read German, but I think this is accurate. Again, the Wikipedia article is more substantive: http://en.wikipedia.org/wiki/Horsepower but Wikipedia then cites this German document, so I'm trying to cite the authoritative source.} In row "uk_gal" (UK/Imperial gallon), append this to the Description: , exactly 4.54609 liters. {I'm having trouble getting an authoritative source, so let's just use this. This can be computed from the existing text. This page: http://en.wikipedia.org/wiki/Imperial_units claims that "The Weights and Measures Act of 1985 switched to a gallon of exactly 4.54609 l" Unfortunately, later versions have removed that definition, so I didn't find its definition here: http://www.statutelaw.gov.uk/content.aspx?activeTextDocId=2191980 } In row "uk_qt" (UK/Imperial quart), append this to the Description: , exactly 1/4 of a UK gallon. In row "uk_pt" (UK/Imperial pint), append this to the Description: , exactly 1/8 of a UK gallon. After the end of the first table in CONVERT, state: "If a conversion factor (as listed above) is not exact, an implementation may use a more accurate conversion factor instead." ** NOTE: THIS PROPOSAL WILL BE EDITED FURTHER, BUT I WANTED EVERYONE TO SEE WHERE I'M GOING. BELOW ARE NOTES, AND NOT YET PART OF THE UPDATED PROPOSAL. ** Conversion factors according to OOo implementation: "pond": 1 N = 101.9716 pond Conversion factors according to http://www.metas.ch/metasweb/Themen/Masseinheiten/calculation/en_calculation_frame_umrechnungen.html Note: for gravitational force we could use the third CGPM (1901, CR 70) definition of standard gravity, gn=9.80665 m/s2. > Undefined units for Convert Function - NEEDS-DISCUSSION > ------------------------------------------------------- > > Key: OFFICE-3492 > URL: http://tools.oasis-open.org/issues/browse/OFFICE-3492 > Project: OASIS Open Document Format for Office Applications (OpenDocument) TC > Issue Type: Bug > Components: OpenFormula > Affects Versions: ODF 1.2 CD 05 > Reporter: Eric Patterson > Assignee: David Wheeler > Priority: Critical > Fix For: ODF 1.2 CD 06 > > > There are still a number of units that are undefined and cannot be implemented as described. These should all be defined with numbers. > "ly" * Light-year, the distance light travels, in a vacuum, in a Julian year of 365.25 days > "parsec" or "pc" * Distance from sun to a point having heliocentric parallax of one second (used for stellar distance)* > "PS" PferdestÃ¤rke (German "horse strength", close but not identical to "HP") > "bushel" U.S. bushel (not Imperial bushel), interpreted as volume > "uk_gal" U.K. / Imperial gallon > "uk_qt" U.K. / Imperial quart > Also, for "pond", there is a need to specify what to use for acceleration due to gravity > "pond" * Pond, gravitational force on a mass of one gram -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://tools.oasis-open.org/issues/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira

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