Case Study
Understanding the Origin of Uncertainty in Thermometer Calibration
T hermometers have widespread application ranging from their role in measuring temperature in common consumer goods to integration in sophisticated medical and industrial technology or processes. Like any measurement device, they must be calibrated with the International Temperature Scale of 1990 (ITS-90). The Calibration Process ITS-90 is based on fixed points at which a pure metal changes its phase by melting or freezing. During the p