To measure small volumes of liquids accurately micropipettes are used. The thing here is how accurately it works or calibrates the volumes of liquids. In order to dilute the liquid precisely the calibration of pipette can play a vital role. This could be the fundamental part of any laboratory practice. Regardless of so many sizes and manufacturers the primary function of a pipette is to transfer the liquid precisely so it is necessary to understand the physics of micropipettes. The micropipettes are not much different from each other almost every pipette has the same plunger at the top only few have different designs because of the manufacturing differences.
Before calibration of micropipette the vital thing that should be understood are the two key terms imprecision and inaccuracy.