A volumetric flask (measuring flask or graduated flask) is a piece of laboratory apparatus, a type of laboratory flask, calibrated to contain a precise volume at a certain temperature. Volumetric flasks are used for precise dilutions and preparation of standard solutions.

What is calibration of flask?

Glassware is commonly calibrated using a liquid of known, specific density, and an analytical balance. The procedure is to determine the mass of liquid the glassware will hold, and to divide this mass of liquid by the density of the liquid, obtaining the corresponding volume of liquid.

Why do we need to calibrate volumetric flask?

Calibration Of Glassware

Accuracy is the most crucial factor in quantitative chemistry. A slight error in measurements can lead to a great disaster. That is why only standard volumetric glassware is used in the domain. But these apparatuses also fail to deliver the exact estimations, even after claiming to do so.