Conventional quantity value

{
  "id": "MLC-T-CHM-002541",
  "term": "Conventional quantity value",
  "field": "Chemistry",
  "definition": "A value agreed upon for a quantity so that it can be used for a stated purpose, such as the standard acceleration of free fall, 9.80665 m/s2, or the conventional value of the Josephson constant. It is taken to have a suitably small measurement uncertainty, which is zero for defined constants. A conventional value is also assigned to individual measurement standards, such as a mass standard.",
  "synonyms": [
    "conventional value",
    "conventional value of a quantity"
  ],
  "subject": "Analytical Chemistry",
  "see_also": [
    "consensus property value",
    "assigned value",
    "interlaboratory comparison"
  ],
  "references": [
    "PAC, 2021, 93, 997. 'Metrological and quality concepts in analytical chemistry (IUPAC Recommendations 2021)' on page 1004 (https://doi.org/10.1515/pac-2019-0819)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/conventional-quantity-value/"
}