The Voltage Laboratory is responsible for establishing and maintaining national standards for voltage and current measurements, transferring their accuracy to secondary laboratories through calibration and comparison, and ensuring international recognition of measurements through international laboratory comparisons.

The Voltage Laboratory performs DC voltage, AC voltage, DC current, AC current measurements. Voltage Laboratory Calibration Capabilities are given in the table.
| Size | Measurement Range | Uncertainty (k=2, 95 %) |
|---|---|---|
| DC Voltage | 0 V - 1000 V | 15 nV - 1.5 µV/V |
| AC Voltage |
2 mV - 1000 V (10 Hz-1 MHz) | (3 - 670) µV/V |
|
0.2 V - 50 V (1 MHz-100 MHz) | (55 - 3300) µV/V | |
| DC Current | 10 µA - 100 A | (10 - 50) µA/A |
| AC Current |
100 µA - 20 A (10 Hz-100 kHz) | (10 - 270) µA/A |
Laboratory facilities including calibration services are operated in accordance with UME Quality Management System which is comply with ISO/IEC 17025 “General requirements for the competence of testing and calibration laboratories”. UME Quality Management System is evaluated by The Technical Committee for Quality (TC-Q) of European Collaboration in Measurement Standards (EURAMET). Also, Voltage Laboratory has been accredited by Turkish Accreditation Agency (TÜRKAK) according to ISO/IEC 17025. The accreditation scope of the Laboratory covers a wide scope of calibration services. (Accreditation No: AB-0034-K)
The details about the laboratory comparisons and best uncertainties can be found BIPM KCDB database.
Projects carried out within the scope of the European Metrology Program in which the Voltage Laboratory is involved:
The Voltage Laboratory also works on national projects such as the application of high-precision analog-to-digital and digital-to-analog converters (ADC, DAC) with quantum voltage standards (Programmable Josephson Voltage Standard and Josephson Arbitrary Waveform Synthesizer) and the development of new scaling devices to ensure traceability of AC voltage via quantum standards.
Email: ume@tubitak.gov.tr
Phone: 0 (262) 679 5000