Title: data
Long Title: IUPAC Gold Book - data
DOI: 10.1351/goldbook.15323
Status: current

Definition
Experimental results, often numerical.

Notes
1) The term is plural; its singular form is datum.
2) Data directly obtained from experimental apparatus may be referred to as raw data. Raw data may be subjected to numerical operations (unit conversions, etc.) to give transformed data, which maintain a point-for-point correspondence with the raw data. However, the use of the term "data" to refer to the results of numerical modeling operations or other elaborate calculations is controversial and discouraged. The latter are better referred to as "results" and, when presented graphically, are usually represented by smooth lines.

Source
- PAC, 2008, 80, 233. 'Glossary of terms related to solubility (IUPAC Recommendations 2008)' on page 244 (https://doi.org/10.1351/pac200880020233)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/15323/html
- json: https://goldbook.iupac.org/terms/view/15323/json
- xml: https://goldbook.iupac.org/terms/view/15323/xml

Citation: Citation: 'data' 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.15323
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Disclaimer: 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.
Accessed: 2026-04-27T17:50:03+00:00