The micropore systems of three glassy carbons prepared using different recipes in the polymerization and carbonization of furfuryl alcohol have been studied by adsorption kinetic measurements and the adsorption-desorption isotherms of five adsorptives, with different molecular geometries, sizes, and polarity. The analysis of the adsorption isotherms has been carried out by comparing the results obtained when Dubinin-Radushkevich, the binomial Dubinin equation, and Dubinin Ashtakhov approximations are applied.