Absolute standard barometer

{
  "id": "MLC-T-MET-003192",
  "term": "Absolute standard barometer",
  "field": "Meteorology and atmospheric science",
  "definition": "A mercury barometer designed and calibrated to provide highly accurate measurements of atmospheric pressure, serving as a reference for other barometers. It typically features a precisely measured column of mercury in a vacuum, with corrections applied for temperature and gravity. These instruments are maintained in national meteorological laboratories for calibration purposes.",
  "url": "https://mlchart.com/terminology/meteorology/absolute-standard-barometer/"
}