| Metrology area, Sub-field | Mass and related quantities, Density |
| Description | Density measurement of a silicon sphere |
| Time of measurements | 2022 - 2023 |
| Status | Approved for equivalence |
| Final Reports of the comparisons | |
| References | |
| Measurand | Density and volume |
| Parameters | Temperature: 20 °C Pressure: 101325 Pa |
| Transfer device | 1 kg sphere made of natural silicon |
| Comparison type | Key Comparison |
| Consultative Committee | CCM (Consultative Committee for Mass and Related Quantities) |
| Conducted by | CCM (Consultative Committee for Mass and Related Quantities) |
| Comments | Silicon sphere with a nominal density of 2329 kg/m³ by hydrostatic weighing. |
| Pilot institute |
PTB
Physikalisch-Technische Bundesanstalt Germany |
| Contact person | Daniela Eppers +495315921820 |
| Additional |
| Pilot laboratory | |
|---|---|
| PTB |
Physikalisch-Technische Bundesanstalt, Germany, EURAMET |
| CENAM |
Centro Nacional de Metrologia, Mexico, SIM |
| INRIM |
Istituto Nazionale di Ricerca Metrologica, Italy, EURAMET |
| METAS |
Federal Institute of Metrology, Switzerland, EURAMET |
| NIM |
National Institute of Metrology, China, APMP |
| NIS |
National Institute for Standards, Egypt, AFRIMETS |
| NMIA |
National Measurement Institute, Australia, Australia, APMP |
| NMIJ AIST |
National Metrology Institute of Japan, Japan, APMP |
| NRC |
National Research Council, Canada, SIM |
| SASO-NMCC |
National Measurement and Calibration Center - Saudi Standards, Metrology and Quality Organization, Saudi Arabia, GULFMET |
| UME |
TÜBITAK Ulusal Metroloji Enstitüsü, Türkiye, EURAMET |
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