Base quantity

{
  "id": "MLC-T-CHM-001123",
  "term": "Base quantity",
  "field": "Chemistry",
  "definition": "A quantity in a system of quantities that is chosen by convention to be independent of other quantities in that system. These quantities form the foundation upon which all other derived quantities are built. In the International System of Units (SI), there are seven base quantities, including length, mass, and time.",
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "amount of substance",
    "base unit",
    "electric current",
    "length",
    "luminous intensity",
    "mass",
    "thermodynamic temperature",
    "time"
  ],
  "references": [
    "PAC, 1986, 58, 1405. 'Recommendations for the presentation of thermodynamic and related data in biology (Recommendations 1985)' on page 1406 (https://doi.org/10.1351/pac198658101405)",
    "PAC, 1996, 68, 957. 'Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)' on page 963 (https://doi.org/10.1351/pac199668040957)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/base-quantity/"
}