| Metrology area, Sub-field | Length, Dimensional Metrology |
| Description | Calibration of diameter standards |
| Time of measurements | 2024 - 2026 |
| Status | Measurements in progress |
| References | |
| Measurand | Diameter in nm Nominal diameters are (in mm): 5; 50 (ring) 5; 40 (plug) 25 (sphere) |
| Parameters | Internal and external diameters as primary parameters Roundness and straightness as secondary parameters |
| Transfer device | Two ring gauges from 5 mm to 50 mm Two plug gauges from 5 mm to 40 mm |
| Comparison type | Key Comparison |
| Consultative Committee | CCL (Consultative Committee for Length ) |
| Conducted by | EURAMET (European Association of National Metrology Institutes) |
| RMO Internal Identifier | EURAMET Project No 1667 |
| Pilot institute |
CEM
Centro Español de Metrologia Spain |
| Contact person | María del Mar Pérez +34 91 8074801 |
| Pilot laboratory | |
|---|---|
| CEM |
Centro Español de Metrologia, Spain, EURAMET |
| BEV |
Bundesamt für Eich- und Vermessungswesen, Austria, EURAMET |
| BFKH |
Government Office of the Capital City Budapest, Hungary, EURAMET |
| BMM |
Bureau of Metrology (Montenegro), Montenegro, EURAMET |
| FSB-LPM |
FSB - Laboratory for Process Measurements, Croatia, EURAMET |
| GUM |
Glowny Urzad Miar, Central Office of Measures, Poland, EURAMET |
| INM |
National Institute of Metrology, Romania, EURAMET |
| LNE |
Laboratoire national de métrologie et d'essais, France, EURAMET |
| METAS |
Federal Institute of Metrology, Switzerland, EURAMET |
| MIRS |
Metrology Institute of the Republic of Slovenia, Ministry of the Economy, Tourism and Sport, Slovenia, EURAMET |
| NPL |
National Physical Laboratory, United Kingdom, EURAMET |
| NSAI NML |
NSAI National Metrology Laboratory, Ireland, EURAMET |
| PTB |
Physikalisch-Technische Bundesanstalt, Germany, EURAMET |
| RISE |
Research Institutes of Sweden AB, Sweden, EURAMET |
| SASO-NMCC |
National Measurement and Calibration Center - Saudi Standards, Metrology and Quality Organization, Saudi Arabia, GULFMET |
| SMD |
Service de la Métrologie Belge, Belgium, EURAMET |
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