| Metrology area, Sub-field | Electricity and Magnetism, DC Voltage and Current |
| Description | Ultra-low DC current sources |
| Time of measurements | 2023 - 2024 |
| Status | Measurements completed |
| Measurand | Low DC current ±100 fA , ±1 pA, ±10 pA, ±100 pA, and ±1 nA |
| Transfer device | Ultra Low Current Amplifier (ULCA) |
| Comparison type | Supplementary Comparison |
| Consultative Committee | CCEM (Consultative Committee for Electricity and Magnetism) |
| Conducted by | EURAMET (European Association of National Metrology Institutes) |
| RMO Internal Identifier | EURAMET 1562 |
| Comments | This comparison is a follow-up of comparison EUROMET.EM-S24. |
| Pilot institute |
PTB
Physikalisch-Technische Bundesanstalt Germany |
| Contact person | Rolf Judaschke +49 531 592 2100 |
| Additional |
| Pilot laboratory | |
|---|---|
| PTB |
Physikalisch-Technische Bundesanstalt, Germany, EURAMET |
| AS METROSERT |
Central Office of Metrology, Estonia, EURAMET |
| BFKH |
Government Office of the Capital City Budapest, Hungary, EURAMET |
| CEM |
Centro Español de Metrologia, Spain, EURAMET |
| INRIM |
Istituto Nazionale di Ricerca Metrologica, Italy, EURAMET |
| MIKES |
VTT Technical Research Centre of Finland Ltd, Centre for Metrology/Mittatekniikan keskus, Finland, EURAMET |
| NPL |
National Physical Laboratory, United Kingdom, EURAMET |
| VSL |
VSL, Netherlands, EURAMET |
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