{"term":{"id":"08099","title":"process in a state of statistical control","longtitle":"IUPAC Gold Book - process in a state of statistical control","doi":"10.1351\/goldbook.08099","code":"08099","status":"current","synonym":"<em>synonyms<\/em>: process in statistical control, stable process","definitions":[{"id":1,"text":"Process subject only to random causes.","notes":{"1":"The random variation is considered to follow a Gaussian distribution and is characterized by its variance (standard deviation)","2":"This state does not imply that the random variation is large or small, within or outside of specification, but rather that the variation is predictable using statistical techniques.","3":"A control chart can be used to monitor a process and to determine whether the process is, or is not, in a state of statistical control. See out-of-control criteria and control limit."},"links":[{"term":"control chart","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/08068"},{"term":"control limit","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/08069"},{"term":"out-of-control criteria","url":"https:\/\/goldbook.iupac.org\/\/terms\/view\/08092"}],"sources":["PAC, 2021, 93, 997. 'Metrological and quality concepts in analytical chemistry (IUPAC Recommendations 2021)' on page 1033 (https:\/\/doi.org\/10.1515\/pac-2019-0819)"]}],"altoutputs":{"html":"https:\/\/goldbook.iupac.org\/terms\/view\/08099\/html","xml":"https:\/\/goldbook.iupac.org\/terms\/view\/08099\/xml","plain":"https:\/\/goldbook.iupac.org\/terms\/view\/08099\/plain"},"citation":"Citation: 'process in a state of statistical control' 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.08099","license":"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.","collection":"If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org .","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":"2026-05-09T04:30:10+00:00"}}