Ecological Systems and Devices Annotation << Back THE METHOD OF THE DEFINITION OF THE CORRELATION OF THE WORKING AND GENERAL SQUARES OF THE SURFACE OF THE FILTERINGABSORBING MATERIAL OF FACING PARTS OF PREVENTIVE BREATHINGS DEVICES A.A. Sevostyanov, S.V. Soloshin, S.V. Kazemirov, O.A. Narvatova The developed method of the defi nition of the correlation of the working and general squares of the surface of the fi lteringabsorbing material of facing parts of preventive breathings devices is described in this article. The method is based on consecutive measurement of an aerodynamic resistance of the investigated sample on dummy system both a conic crimped lock and comparison of the gained data. The method differs simplicity of hardware registration, high reliability of received data, speed, low requirements to attendants. It will allow to create technically more perfect specimens and to raise security of the personnel which will use them. Approbation of the developed method is spent. Keywords: preventive breathings devices; filtering-absorbing material; aerodynamic resistance; hazardous chemical agents; aerosol. Contacts: E-mail: sevandr2008@rambler.ru Pp. 35-41.