| Metrology area, Sub-field | Thermometry, Standard Platinum Resistance Thermometers |
| Description | Realization of the ITS-90 from Hg triple point to Zn freezing point |
| Time of measurements | 2020 |
| Status | Approved for equivalence |
| Final Reports of the comparisons | |
| References | |
| Measurand | Temperature Fixed point of zinc (419.527 °C), tin (231.928 °C), gallium (29.7646 °C) and mercury (-38.8344 °C). |
| Transfer device | Two Standard Platinum Resistance Thermometers (SPRTs) : SPRT #1 - Rosemount 162CE SPRT #2 - Isotech 670Q |
| Comparison type | Key Comparison |
| Consultative Committee | CCT (Consultative Committee for Thermometry) |
| Conducted by | SIM (Inter-American Metrology System) |
| Pilot institute |
INMETRO
Instituto Nacional de Metrologia, Qualidade e Tecnologia Brazil |
| Contact person | Klaus Natorf Quelhas +55 21 2679-9057 |
| Additional |
| Pilot laboratory | |
|---|---|
| INMETRO |
Instituto Nacional de Metrologia, Qualidade e Tecnologia, Brazil, SIM |
| TTBS |
Trinidad and Tobago Bureau of Standards (Trinidad and Tobago/CARICOM), CARICOM (Caribbean Community), SIM |
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