Ecological Systems and Devices Annotation << Back Using asymmetrical derivatives ?, ??- diechlorinediethylsulphide investigation as its simulators for an estimation of permeability of textile materials of individual defence Alimov O.N., Pavlov M.B., Gardin T.V. The rate of penetration mustard gas and his imitator through such polymer as butyl- rubber was studied. The similar nature of penetration was arranged.