One production batch of a steam-activated (black coal) AG-5 granulated C was partly ground and fractionated in a constant-air-rate elutriator blowing at an oblique angle to collect 11 fractions deposited as a 110 x 70-cm ellipsis. Nitrogen (ad)desorption (BET, 77.5 K) isotherms (IUPAC's class IV) revealed a micro- and a meso-porous structure developed in each fraction. Ash content diminishing at the greater distances from the outlet tube (variance, 12.8%), indicated that the degree of burning varied within the batch. The mesopore surface area and volume varied even more. The micropore volume and geometrical internal surface area were stable as established by using several adsorption models. The models allowed to relate the exponent in the Dubinin-Astakhov equation to the dispersion of the linear micropore dimension. Fractal analysis allowed to estimate the dispersion of the fractal dimension and to establish a new correlation (for adsorption of N-2) between the fractal dimension and the average pore size connected with the power law. A review with 39 refs. covering adsorption models.