Marine Services of Illinois, Inc. Petroleum Measurement & Testing Equipment Call Customer Support At: 800-421-8329
Glass Thermometer Stem Correction
STEM CORRECTIONS (mercury in glass thermometers)
C = Correction (for a total immersion thermometer)
K = Differential expansion coefficient between mercury and glass
N = Number of thermometer scale degrees the mercury is out of the bath
ti = Temperature of the thermometer bulb
= Average temperature of the portion of the stem containing mercury which is out of the bath
note: K = .00016/C? or K = .00009/ F?
ta = Actual temperature
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= Average temperature of the portion of the stem containing mercury which is out of the bath
