TY JOUR TI ASSESSMENT OF FIRE AND EXPLOSIVE PROPERTIES OF LOW-POWER PYROTECHNIC PRODUCTS KW pyrotechnic products KW TNT equivalent KW shock wave KW safe distance JO Problems of risk management in the technosphere AU Gapeev, A.A. AU Gudkov, M.A. AU Sulimenko, V.A. AU Kozlova, I.V. PY 2025 IS 2025 PB Saint-Petersburg University of State Fire Service of Emercom of Russia