Reducing

{
  "id": "MLC-T-CHM-010053",
  "term": "Reducing",
  "field": "Chemistry",
  "definition": "A sampling operation that decreases the mass of a laboratory sample, the particle size of its material, or both. Mass is reduced by division, for example coning and quartering, riffling or a rotary divider, and particle size by milling or grinding. Reducing a laboratory sample in this way gives the test sample, from which test portions are taken.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "laboratory sample"
  ],
  "references": [
    "PAC, 1990, 62, 1193. 'Nomenclature for sampling in analytical chemistry (Recommendations 1990)' on page 1204 (https://doi.org/10.1351/pac199062061193)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/reducing/"
}