Intrinsic examination standard

{
  "id": "MLC-T-CHM-006030",
  "term": "Intrinsic examination standard",
  "field": "Chemistry",
  "definition": "An examination standard whose reference value comes from a reproducible inherent characteristic of a phenomenon or a substance, so that it can be realized directly rather than calibrated against another standard. The property involved is a nominal one, meaning a category or identity rather than a numerical quantity. In ordinary measurement the same idea gives the triple-point cell of water and the Josephson junction voltage standard.",
  "subject": "Chemistry and Human Health",
  "see_also": [
    "examination standard",
    "nominal property",
    "nominal property value"
  ],
  "references": [
    "PAC, 2018, 90, 913. 'Vocabulary on nominal property, examination, and related concepts for clinical laboratory sciences (IFCC-IUPAC Recommendations 2017)' on page 931 (https://doi.org/10.1515/pac-2011-0613)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/intrinsic-examination-standard/"
}