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The work is devoted to the study on the influence of various factors on the microporous structure parameters of the zeolite compositions being formed. To study the parameters of the microporous structure, sorption analysis methods were used. Zeolites of the BETA type and compositions based on them were chosen as objects under study. It was found that the formation of zeolite compositions is greatly influenced by the nature of the binder (matrix) and peptizer, which determine the proportion of micropores in the zeolite composition. It is shown that in the study of the textural characteristics of zeolite compositions, preliminary sample preparation (heat treatment to remove the moisture adsorbed by them) is necessary.