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Purpose. Analysis of existing methods for measuring the vapor permeability of textile and its indicators to determine the appropriateness of using one or another technique depending on the research objectives. Methodology. Analytical review and systematization of scientific and technical information about methods for studying vapor permeability. Findings. The paper presents an analysis of standardized methods for studying vapor permeability - their features, advantages and disadvantages are noted. The analysis covers the techniques that are presented in ASTM E96; ISO 15496; BS 7209; JIS L1099; ISO 2528; DSTU 3672; ISO 11092; ASTM 1868. Originality. A detailed analysis of existing methods for determining vapor permeability of textiles has been carried out, and the main directions and prospects of research have been systematized. Practical value. The systematization of methods for studying vapor permeability of textiles makes it possible to quickly orientate in a large number of methods and indicators to determine the appropriateness of using one or another technique depending on the research tasks. [ABSTRACT FROM AUTHOR]