Legal Metrology

Legal metrology has the following features:

  • Measuring instruments are designed for operators with no competence in measurement
  • Measurement procedures are described simply in the instrument’s operating manual
  • Environmental conditions are not controlled, so instruments must be designed for a range of environmental conditions and disturbances
  • Operator impartiality cannot be assumed, so instruments must be protected against fraud
  • Confidence in measurements is based on confidence in the instrument and on regulatory surveillance