Thermometers used in the laboratory must be calibrated before they are put into use. This is accomplished by
A) sending to the National Institute of Standards and Technology (NIST) to determine its accuracy.
B) checking against an NIST thermometer.
C) measuring the grades to make sure they are the standard size and accurate.
D) using a colored dye.

Question

Quizplus · Accepted Answer

Checking the thermometer against an NIST thermometer provides a reliable and accurate method to calibrate the thermometer in the laboratory. Sending to NIST or measuring grades are not practical options for routine laboratory calibration. Using a colored dye is not a valid method for calibration.

Thermometers Used in the Laboratory Must Be Calibrated Before They