| Metrology area, Sub-field | Length, Dimensional Metrology |
| Description | Calibration of surface roughness parameters |
| Time of measurements | 2020 - 2021 |
| Status | Measurements in progress |
| References | |
| Measurand | Surface texture parameters: d, Ra, Rq, Rz, Rt, RSm Nominal values : (Type A2 standard) d : from 0.15 μm to 9.00 μm (Type C3 standard) Ra : 2.3 μm, RSm 200 μm (Type D1 Standard) Ra : 0.5 μm, Rz: 3 μm (Type D2 Standard) Ra : 80 nm, Rz : 450 nm, 0.15 µm to 10 µm |
| Transfer device | Four surface texture standards (ISO 5436-1 ) are used for the comparison: 1 type A2, 1 type C3, 1 type D1 and 1 type D2. |
| 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 1502 |
| Pilot institute |
PTB
Physikalisch-Technische Bundesanstalt Germany |
| Contact person | Lena Jung-Albrecht 0049 531 592 5124 |
| Pilot laboratory | |
|---|---|
| PTB |
Physikalisch-Technische Bundesanstalt, Germany, EURAMET |
| BEV |
Bundesamt für Eich- und Vermessungswesen, Austria, EURAMET |
| CEM |
Centro Español de Metrologia, Spain, EURAMET |
| CMI |
Czech Metrology Institute, Czechia, EURAMET |
| DFM |
Danish Fundamental Metrology A/S, Denmark, EURAMET |
| FSB-LPMD |
FSB - Laboratory for precise measurement of length, Croatia, EURAMET |
| GUM |
Glowny Urzad Miar, Central Office of Measures, Poland, EURAMET |
| INM |
National Institute of Metrology, Romania, EURAMET |
| METAS |
Federal Institute of Metrology, Switzerland, EURAMET |
| NIM |
National Institute of Metrology, China, APMP |
| NMIA |
National Measurement Institute, Australia, Australia, APMP |
| NPL |
National Physical Laboratory, United Kingdom, EURAMET |
| VNIIMS (now RCAM-Rostest) |
Russian Scientific Research Institute for Metrological Service, Rosstandart (now Research Center for Applied Metrology - Rostest), Russian Federation, COOMET |
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