01554 IUPAC Gold Book - deflection 10.1351/goldbook.D01554 D01554 current 1 (In terms of divisions of the pointer scale). The other point of reversal of an ideal (undamped) swing starting at the zero point of the pointer scale. Since the points of reversal of an ideal swing are located symmetrically about the rest point, the deflection is equal to twice the rest point. rest point https://goldbook.iupac.org//terms/view/R05348 zero point https://goldbook.iupac.org//terms/view/Z06743 Orange Book, 2nd ed., p. 36 (https://media.iupac.org/publications/analytical_compendium/) https://goldbook.iupac.org/terms/view/D01554/html https://goldbook.iupac.org/terms/view/D01554/json https://goldbook.iupac.org/terms/view/D01554/plain Citation: 'deflection' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.D01554 The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms. If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using. 2026-06-07T03:52:24+00:00