04984 IUPAC Gold Book - quantity of dimension one 10.1351/goldbook.Q04984 Q04984 current synonym: dimensionless quantity 1 Quantity in the dimensional expression of which all the exponents of the dimensions of the base quantities are zero. PAC, 1996, 68, 957. 'Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)' on page 987 (https://doi.org/10.1351/pac199668040957) https://goldbook.iupac.org/terms/view/Q04984/html https://goldbook.iupac.org/terms/view/Q04984/json https://goldbook.iupac.org/terms/view/Q04984/plain Citation: 'quantity of dimension one' 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.Q04984 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. 2026-04-18T05:03:01+00:00