Secondary examination standard

{
  "id": "MLC-T-CHM-010612",
  "term": "Secondary examination standard",
  "field": "Chemistry",
  "definition": "A substance or material whose property value is assigned through comparison with a primary examination standard. It is used in clinical laboratories to calibrate, verify, or validate examination procedures when a primary standard is not available or practical for routine use. Unlike a primary standard, which has the highest metrological quality, a secondary standard's traceability is established through a documented calibration hierarchy.",
  "subject": "Chemistry and Human Health",
  "see_also": [
    "examination standard",
    "examination calibration",
    "kind-of-nominal-property",
    "nominal property",
    "primary examination standard"
  ],
  "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/secondary-examination-standard/"
}