1. A method of stabilizing iodine-containing compounds by bringing these iodine-containing compounds into contact with nitrogen-containing polymers, characterized in that a polymer which is obtained by converting aziridines in the presence of water is used as a nitrogen-containing polymer. A method according to claim 1, wherein the iodine-containing compounds are iodoalkynyl compounds, such as compounds in which one or more iodine atoms are bonded to sp-hybridized carbon atoms of olefinic double bonds or to sp-hybridized carbon atoms. The method according to claim 2, characterized in that the iodine-containing compounds have a biocidal effect and are the following compounds: N-alkyl iodotetrazoles with 1-12 carbon atoms in alkyl, N-aryl iodotetrazoles with 6-15 carbon atoms in aryl, N-arylalkyl iodotetrazoles with 6 -15 carbon atoms in aryl, diiodomethyl-p-tolylsulfone, diiodomethyl-p-chlorophenylsulfone, 3-bromo-2,3-diiodo-2-propenyl alcohol, 2,3,3-triiodallyl alcohol, 4-chloro-2- ( 2-chloro-2-methylpropyl) -5 - [(6-iodo-3-pyridinyl) methoxy] -3 (2Н) -pyridazinone (CAS registration number: 120955-77-3), iodophenphos, simple 3-iodine-2 -pro nyl-2,4,5-trichlorophenyl ether, 3-iodine-2-propynyl-4-chlorophenylformal (IPCF), N-iodopropargyloxycarbonylalanine, ethyl ester N-iodopropargyloxycarbonylalanine, 3- (3-iodopropargyl) benzoxazol-2-one 3- (3-iodopropargyl) -6-chlorobenzoxazol-2-one, 3-iodo-2-propynyl alcohol, 4-chlorophenyl-3-iodopropargylformal, 3-iodo-2-propynylpropylcarbamate, 3-iodo-2-propynylbutylcarbamate (IPBC ), 3-iodine-2-propynyl-m-chlorophenylcarbamate, 3-iodine-2-propynylphenyl-carbamate, di (3-iodo-2-propynyl) hexyl dicarbamate, 3-iodine-2-propynyloxyethanol ethyl carbamate,1. Способ стабилизации йодсодержащих соединений при помощи приведения в контакт этих йодсодержащих соединений с азотсодержащими полимерами, отличающийся тем, что в качестве азотсодержащего полимера используют полимер, который получают в результате превращения азиридинов в присутст