TY JOUR TI NEW APPROACHES TO SOLVING IDENTIFICATION PROBLEMS IN THE STUDY OF OIL AND PETROLEUM PRODUCTS KW petroleum products KW emergency KW emergency spill KW combustion intensifier KW investigation of fires KW arson KW heavy metals JO Scientific and analytical journal «Vestnik Saint-Petersburg university of State fire service of EMERCOM of Russia» AU Ivakhnyuk, S.G. AU Claptyuk, I.V. AU Motorygin, Y.D. PY 2024 IS 2024 PB Saint-Petersburg University of State Fire Service of Emercom of Russia