Dracma (massa)

O dracma - "dram" em inglês (grafia alternativa britânica "drachm"; símbolo do boticário ʒ ou ℨ; abreviado dr)^[1]^[2]^:C-6–C-7^[3] é uma unidade de massa no sistema avoirdupois, e ambos uma unidade de massa e uma unidade de volume no sistema dos boticários.^[2]

O dracma era originalmente uma moeda e um peso na Grécia Antiga.^[4] A unidade de volume é mais corretamente chamada de "dracma de fluido", fluidram ou fluidracma (abreviado fl dr, ƒ 3 ou fʒ).^[1]^[2]^:C-17^[3]^[5]^[6]^[7]

Equivalências

O "dracma avoirdupois" é uma unidade de massa imperial que equivale a 1,7718451953125 gramas, e também a:

27,343749999961 grãos (27,34375 grãos)
0,062499999999912 onças avoirdupois (0,0625 onças)
0,0039062499999945 libras avoirdupois (0,00390625 libras)

O "dracma troy", usado na joalheria, equivale a 3,8879346 gramas, e também a:

60 grãos
2,5 pennyweights
0,125 onças troy
0,0104166666666666 libras troy

Ver também

Referências

↑ ^a ^b Simpson, John A.; Weiner, Edmund S.C., eds. (1989). «drachm, n.». Oxford English Dictionary 2nd ed. Oxford, England: Oxford University Press. ISBN 978-0-19-861186-8. OCLC 50959346. Consultado em 6 de abril de 2021. Spelt drachm or dram. Earlier version first published in New English Dictionary, 1897.
↑ ^a ^b ^c National Institute of Standards and Technology (October 2011). Butcher, Tina; Cook, Steve; Crown, Linda et al. eds. "Appendix C – General Tables of Units of Measurement" (PDF). Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices. NIST Handbook. 44 (2012 ed.). Washington, D.C.: U.S. Department of Commerce, Technology Administration, National Institute of Standards and Technology. ISSN 0271-4027. OCLC OCLC 58927093. Retrieved 1 July 2012.
↑ ^a ^b Boyer, Mary Jo (2009). «UNIT 2 Measurement Systems: The Apothecary System». Math for Nurses: A Pocket Guide to Dosage Calculation and Drug Preparation 7th ed. Philadelphia, PA: Wolters Kluwer Health | Lippincott Williams & Wilkins. pp. 108–9. ISBN 978-0-7817-6335-6. OCLC 181600928. Consultado em 6 de abril de 2021
↑ Simpson, John A.; Weiner, Edmund S.C., eds. (1989). «dram, n.». Oxford English Dictionary 2nd ed. Oxford, England: Oxford University Press. ISBN 978-0-19-861186-8. OCLC 50959346. Consultado em 6 de abril de 2021 Earlier version first published in New English Dictionary, 1897.
↑ Royal College of Physicians of Dublin (1850). «Weights and Measures». The Pharmacopœia of the King and Queen's College of Physicians in Ireland. Dublin: Hodges and Smith. p. xlvi. OCLC 599509441. hdl:2027/mdp.39015069402942
↑ «fluidram». Merriam-Webster online. Springfield, MA: Merriam-Webster. OCLC 44475779. Consultado em 6 de abril de 2021. Definition of FLUIDRAM: variant of fluid dram
↑ Powell, Richard; Royal College of Physicians of London (1809). «Weights, Measures, &c. (measures of liquids sect.)». The Pharmacopœia of the Royal College of Physicians of London, M. DCCC. IX corr. and enl. 2nd ed. London: Longman, Hurst, Rees, and Orme. p. 3. OCLC 622876101. hdl:2027/wu.89097444632

[OEDdrachm-1] Simpson, John A.; Weiner, Edmund S.C., eds. (1989). «drachm, n.». Oxford English Dictionary 2nd ed. Oxford, England: Oxford University Press. ISBN 978-0-19-861186-8. OCLC 50959346. Consultado em 6 de abril de 2021. Spelt drachm or dram. Earlier version first published in New English Dictionary, 1897.

[NIST-2] National Institute of Standards and Technology (October 2011). Butcher, Tina; Cook, Steve; Crown, Linda et al. eds. "Appendix C – General Tables of Units of Measurement" (PDF). Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices. NIST Handbook. 44 (2012 ed.). Washington, D.C.: U.S. Department of Commerce, Technology Administration, National Institute of Standards and Technology. ISSN 0271-4027. OCLC OCLC 58927093. Retrieved 1 July 2012.

[Boyer2009-3] Boyer, Mary Jo (2009). «UNIT 2 Measurement Systems: The Apothecary System». Math for Nurses: A Pocket Guide to Dosage Calculation and Drug Preparation 7th ed. Philadelphia, PA: Wolters Kluwer Health | Lippincott Williams & Wilkins. pp. 108–9. ISBN 978-0-7817-6335-6. OCLC 181600928. Consultado em 6 de abril de 2021

[OEDdram-4] Simpson, John A.; Weiner, Edmund S.C., eds. (1989). «dram, n.». Oxford English Dictionary 2nd ed. Oxford, England: Oxford University Press. ISBN 978-0-19-861186-8. OCLC 50959346. Consultado em 6 de abril de 2021 Earlier version first published in New English Dictionary, 1897.

[RoyalCollege1850-5] Royal College of Physicians of Dublin (1850). «Weights and Measures». The Pharmacopœia of the King and Queen's College of Physicians in Ireland. Dublin: Hodges and Smith. p. xlvi. OCLC 599509441. hdl:2027/mdp.39015069402942

[6] «fluidram». Merriam-Webster online. Springfield, MA: Merriam-Webster. OCLC 44475779. Consultado em 6 de abril de 2021. Definition of FLUIDRAM: variant of fluid dram

[PowellRoyalCollege1809-7] Powell, Richard; Royal College of Physicians of London (1809). «Weights, Measures, &c. (measures of liquids sect.)». The Pharmacopœia of the Royal College of Physicians of London, M. DCCC. IX corr. and enl. 2nd ed. London: Longman, Hurst, Rees, and Orme. p. 3. OCLC 622876101. hdl:2027/wu.89097444632

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