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Accreditation and Quality Assurance

, Volume 22, Issue 5, pp 291–297 | Cite as

Are the present measurement standards still valid after SI redefinition?

  • Franco Pavese
Discussion Forum
  • 228 Downloads

Abstract

The SI revision potentially places some basic concerns to all users, one being the validity of their present standards under the new definition. The paper compares what is spelled out in the new SI Brochure draft to what should be specified for practical implementation. The result of the analysis is uncertain for some level of implementation and some standards, with, on the other hand, some positive aspects also illustrated in the paper, not always found explicit in the formal texts.

Keywords

Revised SI Definition of units Standards SI Brochure New SI Brochure drafts 

References

  1. 1.
    Comité Consultatif des Unités (2016) Draft 2016b of the 9th edition of the SI Brochure (2016b) http://www.bipm.org/en/measurement-units/new-si/#communication. Accessed 31 Jul 2017
  2. 2.
    Comité International des Poids et Measures (CIPM) (2016) (CI 2005). Free downloading from http://www.bipm.org/en/committees/cipm/meeting/105.html. Accessed 31 Jul 2017
  3. 3.
  4. 4.
    Bureau International des Poids et Mesures (2006) Le Système International d’Unités (SI), 8th edn. BIPM, Sèvres. Free downloading from http://www.bipm.org/en/publications/si-brochure/. Accessed 31 Jul 2017
  5. 5.
    Mills IM, Mohr PJ, Quinn TJ, Taylor BN, Williams ER (2006) Redefinition of the kilogram, ampere, kelvin and mole: a proposed approach to implementing CIPM recommendation 1 (CI-2005). Metrologia 43:227–246CrossRefGoogle Scholar
  6. 6.
  7. 7.
    BIPM (2008) International vocabulary of metrology—basic and general concepts and associated terms (VIM), 3rd edn BIPM/ISO. Free downloading from http://www.bipm.org/en/publications/guides/. Accessed 31 Jul 2017
  8. 8.
    Mari L, Blattner P, Pavese F (2017) Improving the understandability of the next edition of the International System of Units (SI) by focusing on its conceptual structure, Measurement 101: 200–205. arXiv:1604.00982v2
  9. 9.
    Newell DB (2014) A more fundamental International System of Units. Physics Today 67(7):35. doi: 10.1063/PT.3.2448 CrossRefGoogle Scholar
  10. 10.
    Pavese F, Molinar Min Beciet GF (2012) Modern gas-based temperature and pressure measurement, 2nd edn. Springer, New York (First Edition 1990)Google Scholar
  11. 11.
    Mutual recognition of national measurement standards and of calibration and measurement certificates issued by National Metrology Institutes (MRA) (1999) BIPM, Sèvres. Free downloading from http://www.bipm.org/en/cipm-mra/. Accessed 31 July 2017
  12. 12.
    Marquardt R, Meija J, Mester Z, Towns M, Weir R, Davis R, Stohner J (2017) Definition of the mole (IUPAC Recommendation Provisional 201X), Recommendation 11-Jan-2017, now in press on Pure Appl Chem. Free downloading from https://iupac.org/cms/wp-content/uploads/2017/02/Definition-of-the-mole_pr.pdf. Accessed 31 Jul 2017
  13. 13.
    Pavese F, Charky A (2016) Some important features of the proposed new definition of the International System of Units (SI) that the users should know about before 2018, IJMQE 7:403–413. Free downloading from http://www.metrology-journal.org/articles/ijmqe/abs/2016/04/contents/contents.html. Accessed 31 Jul 2017
  14. 14.
    Pavese F (2016) The New SI: some critical features and a critical review of the CCU 2016 Draft of the SI Brochure. Measurement 98:325–338. doi: 10.1016/j.measurement.2016.07.058 (with Supplementary Information. Online since 22 Jul 2016)
  15. 15.
    Pavese F (2014) How much does the SI, namely the proposed ‘new SI’, conform the spirit of the Metre Treaty? Accred Qual Assur 19:307–314CrossRefGoogle Scholar
  16. 16.
    Pavese F (2011) Some reflections on the proposed redefinition of the unit for the amount of substance and of other SI units. Accred Qual Assur 16:161–165CrossRefGoogle Scholar
  17. 17.
    (2017) http://www.metrologybytes.net. Accessed 31 Jul 2017

Copyright information

© Springer-Verlag GmbH Germany 2017

Authors and Affiliations

  1. 1.TurinItaly

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