why is it necessary to calibrate a thermometer and volumetric glassware?

Answer 1

For some applications, such a lower and middle level teaching, this may not be necessary. For higher level teaching and all research, this is a good idea and for commercial analysis, it may be required by law.

The calibration of Thermometers and volumetric glassware ensure that the readings or measurements are accurate. This is necessary for accurate and precise procedures to be preformed.

A deviation of only a few degrees or a few milliliters can make a significant difference in the final results. Periodic calibration will prevent errors from creeping into the results do to inaccurate measurements.