| Metrology area, Sub-field | Thermometry, Industrial thermometry |
| Description | Comparison of calibration of Industrial Platinum Resistance Thermometers |
| Time of measurements | 2021 - 2023 |
| Status | Report in progress, draft A |
| Measurand | W (t90), Δt90 Temperatures at 420 ºC, 320 ºC, 200 ºC, 160 ºC, 125 ºC, 83 °C, 30 °C, 0 °C, - 20 °C and - 40 ºC. |
| Transfer device | Two Pt-100 IPRTs (100 Ω nominal value at 0 ºC) with four terminals. |
| Comparison type | Supplementary Comparison |
| Consultative Committee | CCT (Consultative Committee for Thermometry) |
| Conducted by | SIM (Inter-American Metrology System) |
| Comments | On 7th of April 2022 about 40 % of the measurements are finished and the participants have provided their results to the pilot laboratory 2025-01-14: I have asked all participants to resend their data to ensure that I have all final data (database of Steffen Rudtsch was not complete and status partwise unknown). Ciro Alberta is supporting the process very well. However, the data from Bolivia and Brasil is still missing. I am still waiting on participants’ data. 2025-04-01: PTB was informed via Ciro Alberto that El Salvador has withdrawn its participation 2025-04-30: The transfer thermometers were recalibrated at the PTB at fixed points to ensure the highest level of confidence (All measurements are done). Further tests are currently being carried out on the thermometers in order to quantify the reliability of the data. |
| Pilot institute |
PTB
Physikalisch-Technische Bundesanstalt Germany |
| Contact person | Lars BUENGER |
| Additional |
| Pilot laboratory | |
|---|---|
| PTB |
Physikalisch-Technische Bundesanstalt, Germany, EURAMET |
| CENAM |
Centro Nacional de Metrologia, Mexico, SIM |
| CENAMEP AIP |
Centro Nacional de Metrología de Panama AIP, Panama, SIM |
| CESMEC |
Centro de Estudios, Medición y Certificación de Calidad, Chile, SIM |
| IBMETRO |
Instituto Boliviano de Metrología, Bolivia, SIM |
| INACAL |
National Institute for Quality, Peru, SIM |
| INEN |
Servicio Ecuatoriano de Normalización, Ecuador, SIM |
| INM (CO) |
Instituto Nacional de Metrología de Colombia, Colombia, SIM |
| INMETRO |
Instituto Nacional de Metrologia, Qualidade e Tecnologia, Brazil, SIM |
| INTI |
Instituto Nacional de Tecnologia Industrial, Argentina, SIM |
| INTN |
Instituto Nacional de Tecnologia y Normalizacion, Paraguay, SIM |
| LATU |
Laboratorio Tecnologico del Uruguay, Uruguay, SIM |
| TTBS |
Trinidad and Tobago Bureau of Standards (Trinidad and Tobago/CARICOM), CARICOM (Caribbean Community), SIM |
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