TY JOUR TI INVESTIGATION OF FIRE OCCURRENCE FROM IGNITION AND EXPLOSION OF A VAPOR-AIR MIXTURE DURING GAS WELDING OPERATIONS KW gas welding KW instrumental research methods KW gas-liquid chromatography KW fluorescence spectroscopy KW infrared spectroscopy KW calculation methods KW explosion KW fire technical expertise JO MONITORING AND EXPERTISE IN SAFETY SYSTEM AU Printseva, M.Y. AU Tymanovsky, A.A. AU Teplyakova, T.D. PY 2024 IS 2024 PB Saint-Petersburg University of State Fire Service of Emercom of Russia