TY JOUR TI IONNOCHROMATOGRAPHIC EXAMINATION OF FIRE RETARDANT COATINGS IN FIRE EXAMINATION KW ion chromatography KW fire protection KW intumescent coatings KW metal structures KW fire and technical expertise JO Problems of risk management in the technosphere AU Printseva, M.Y. AU Teplyakova, T.D. PY 2024 IS 2024 PB Saint-Petersburg University of State Fire Service of Emercom of Russia