What is the difference between Partial Immersion and Total Immersion thermometers?
A. Partial Immersion thermometers are designed with scales calibrated to indicate the true temperature when the thermometers are immersed to specified depths. The portion that should be immersed is indicated on the back of each thermometer. Total Immersion thermometers are designed with scales calibrated to indicate the true temperature when the bulb and the portion of the mercury column, to just below the temperature being read, is exposed to the temperature to be measured.