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List of measuring instruments calibrated by NML

  • DC Voltage Standards
  • DC Resistance Standards
  • Impedance (capacitance and inductance) standards
  • Digital Multimeters
  • Multifunction calibrators
  • LCR Meters
  • High voltage probes and meters

The above list is not exhaustive, and the laboratory can calibrate all electrical indicating and source instruments compatible with its measurement capability outlined below.


Scope (Summary)

The laboratory can measure and source electrical parameters over the ranges shown in the table below. The measurement uncertainties given are summary values only. For a full listing of the laboratory’s best measurement capabilities, please refer to the table of Calibration and Measurement Capabilities (CMCs) approved under the CIPM MRA.

Approved Calibration and
Measurement Capabilities



ISO 17025:2017 Compliance cipm mra text


Oliver Power
Technical Manager - Electrical Laboratory
NSAI National Metrology Laboratory,
Glasnevin, Dublin  D11 E527
T: +353 1 8082610

NML Reference Standard for DC voltage and capacitance