These pipettes are designed to very accurately transfer a specific amount of solution. These pipets can only be used to deliver the volume of liquid for which it is calibrated. Volumetric pipets have narrow tips and a bulb-like expansion in the middle and the single calibration mark for these pipets is found in the tube section above the center expansion.
These pipettes are used in analytical chemistry to make laboratory solutions from a base stock as well as to prepare solutions for titration. These pipettes measure a particular volume to very high accuracy. Volumetric pipettes are designed such after a fluid is dispensed, a small drop of liquid will remain in the tip.The correct volume will be dispensed from the pipette if the tip is touched to the inside wall of the flask and then gently given a half-twist.
