National measurement standards

In the Republic of Estonia, national measurement standards are fixed in four fields of measurement by the regulation of the Minister of Economic Affairs and Communications.

Mass:

calibration of weights in the range of 1 mg…50 kg

Length:

calibration of length gauges in the range of 0.5 mm…1 m

calibration of tape measures in the range of 1 mm…120 m

Temperature:

calibration of platinum resistance thermometers and digital thermometers in five fixed points (Hg, H₂O, Ga, Sn and Zn) and by method if comparison in the range (‑80…+400) °C

Electrical quantities:

Calibration of voltage sources at reference values 1 V; 1.018 V and 10 V

Calibration of voltage sources in the range of 10 mV…1 kV

Calibration of electrical resistors at nominal values of 1 mW…10 kW