The Scientist Amedeo Avogadro was the one, in 1811, first projected that the volume of a gas (at a specified pressure and temperature) is proportional to the number of molecules irrespective of the nature of the gas. The French physicist Jean Perrin in 1909 suggested naming the constant in memory of Avogadro. Perrin won Nobel Prize in 1926 in Physics, mainly for his work in shaping the Avogadro constant by some different approaches.
The initial accurate method to calculate the value of the Avogadro constant was founded on coulometry. The standard is to calculate the Faraday constant, F, which is the electric charge followed by one mole of electrons, and split by the elementary charge, e, to get the Avogadro constant.
Data for Science and Technology (CODATA) Committee publishes values for physical constants for global use. It regulates the Avogadro constant from the proportion of the molar mass of the electron Ar(e)Mu to the rest mass of the electron me:
International Avogadro Coordination
The assignment of Avogadro project is part of the efforts to redefine the kilogram in expressions of a universal physical constant, fairly than the International Prototype Kilogram, and balances the measurements of the Planck constant using Kibble balances. Current definitions of the International System of Units (SI) state that a calculation of the Avogadro constant is a secondary measurement of the Planck constant: