Home On the future revision of the SI
Article Publicly Available

On the future revision of the SI

Published/Copyright: April 30, 2018
Download Article (PDF)
Become an author with De Gruyter Brill
Author Information
Chemistry International
From the journal Chemistry International Volume 40 Issue 2

At its 25th meeting (November 2014) the CGPM adopted a Resolution on the future revision of the International System of Units. This Resolution built on the CGPM's previous Resolution (2011), which took note of the CIPM's intention to propose a revision of the SI and set out a detailed roadmap towards the future changes.

In the revised SI four of the SI base units—namely the kilogram, the ampere, the kelvin and the mole—will be redefined in terms of constants; the new definitions will be based on fixed numerical values of the Planck constant (h), the elementary charge (e), the Boltzmann constant (kB), and the Avogadro constant (NA), respectively. Further, the definitions of all seven base units of the SI will also be uniformly expressed using the explicit-constant formulation, and specific mises en pratique will be drawn up to explain the realization of the definitions of each of the base units in a practical way.

https://www.bipm.org/en/measurement-units/rev-si/

Online erschienen: 2018-4-30
Erschienen im Druck: 2018-4-1

©2018 IUPAC & De Gruyter. This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. For more information, please visit: http://creativecommons.org/licenses/by-nc-nd/4.0/

Articles in the same Issue

  1. Masthead - Full issue pdf
  2. Past President's Column
  3. A Good Beginning Makes a Good Ending
  4. Features
  5. Jamaican Chemists in Early Global Communication
  6. Everything Flows: Continuous Micro-Flow for Pharmaceutical Production
  7. Health for All in Dhaka: CHEMRAWN helps establish an International Centre for Natural Product Research
  8. Chemistry and Cultural Heritage*
  9. IUPAC Offers an Open Door to Chemists of the World*—A Program Revisited
  10. IUPAC Wire
  11. Sixth Polymer International–IUPAC Award goes to Cyrille Boyer
  12. Peter D.J. Grootenhuis is Awarded the 2018 IUPAC-Richter Prize
  13. The United Nations Proclaims the International Year of the Periodic Table of Chemical Elements
  14. World Metrology Day, 20 May 2018
  15. Science for Peace
  16. Resolution on the Water Crisis in Gaza
  17. The Chemical Weapons Convention: From Disarmament to Sustainable Development
  18. Project Place
  19. Interdivisional Discussion of Critical Evaluation of Chemistry Data
  20. Middle east regional cooperation and sustainable water management of transboundary water
  21. Chemical and Biochemical Thermodynamics Reunification
  22. Chemistry Teacher International
  23. Human Health Risk Consideration of Nano-Enabled Pesticides for Industry and Regulators
  24. IUPAC100 Periodic Table Challenge
  25. Making an imPACt
  26. Definition of the mole (IUPAC Recommendation 2017)
  27. On the future revision of the SI
  28. Reactions/comments to the new definition of the mole
  29. Terminology of separation methods (IUPAC Recommendations 2017)
  30. Interpreting and propagating the uncertainty of the standard atomic weights (IUPAC Technical Report)
  31. Mass and volume in analytical chemistry (IUPAC Technical Report)
  32. Risk assessment of effects of cadmium on human health (IUPAC Technical Report)
  33. Vocabulary on nominal property, examination, and related concepts for clinical laboratory sciences (IFCC-IUPAC Recommendations 2017)
  34. Bookworm
  35. “Speciation” Chemistry: Overdue for a Resurgence
  36. IUPAC Silver book—corrigendum
  37. Conference Call
  38. Chemistry and the Environment
  39. Advanced Materials (POLYCHAR2017)
  40. Bioorganic Chemistry in an Interdisciplinary Context
  41. Where 2B & Y
  42. Stamps International
  43. Cultural Heritage Chemistry
  44. Mark Your Calendar
https://doi.org/10.1515/ci-2018-0221

Articles in the same Issue

  1. Masthead - Full issue pdf
  2. Past President's Column
  3. A Good Beginning Makes a Good Ending
  4. Features
  5. Jamaican Chemists in Early Global Communication
  6. Everything Flows: Continuous Micro-Flow for Pharmaceutical Production
  7. Health for All in Dhaka: CHEMRAWN helps establish an International Centre for Natural Product Research
  8. Chemistry and Cultural Heritage*
  9. IUPAC Offers an Open Door to Chemists of the World*—A Program Revisited
  10. IUPAC Wire
  11. Sixth Polymer International–IUPAC Award goes to Cyrille Boyer
  12. Peter D.J. Grootenhuis is Awarded the 2018 IUPAC-Richter Prize
  13. The United Nations Proclaims the International Year of the Periodic Table of Chemical Elements
  14. World Metrology Day, 20 May 2018
  15. Science for Peace
  16. Resolution on the Water Crisis in Gaza
  17. The Chemical Weapons Convention: From Disarmament to Sustainable Development
  18. Project Place
  19. Interdivisional Discussion of Critical Evaluation of Chemistry Data
  20. Middle east regional cooperation and sustainable water management of transboundary water
  21. Chemical and Biochemical Thermodynamics Reunification
  22. Chemistry Teacher International
  23. Human Health Risk Consideration of Nano-Enabled Pesticides for Industry and Regulators
  24. IUPAC100 Periodic Table Challenge
  25. Making an imPACt
  26. Definition of the mole (IUPAC Recommendation 2017)
  27. On the future revision of the SI
  28. Reactions/comments to the new definition of the mole
  29. Terminology of separation methods (IUPAC Recommendations 2017)
  30. Interpreting and propagating the uncertainty of the standard atomic weights (IUPAC Technical Report)
  31. Mass and volume in analytical chemistry (IUPAC Technical Report)
  32. Risk assessment of effects of cadmium on human health (IUPAC Technical Report)
  33. Vocabulary on nominal property, examination, and related concepts for clinical laboratory sciences (IFCC-IUPAC Recommendations 2017)
  34. Bookworm
  35. “Speciation” Chemistry: Overdue for a Resurgence
  36. IUPAC Silver book—corrigendum
  37. Conference Call
  38. Chemistry and the Environment
  39. Advanced Materials (POLYCHAR2017)
  40. Bioorganic Chemistry in an Interdisciplinary Context
  41. Where 2B & Y
  42. Stamps International
  43. Cultural Heritage Chemistry
  44. Mark Your Calendar
Sign up now to receive a 20% welcome discount
Institutional Access
How does access work?
Have an idea on how to improve our website?
Please write us.
© 2025 De Gruyter Brill
Downloaded on 24.10.2025 from https://www.degruyterbrill.com/document/doi/10.1515/ci-2018-0221/html
Scroll to top button