TY JOUR TI THE SECOND PHASE DEVELOPMENT OF EXPERIMENTAL METHODS FOR DETERMINING FLASH POINT. PART 2 KW flash point KW fire point KW device KW apparatus KW tester KW naphtometer JO Problems of risk management in the technosphere AU Alexeev, S.G. PY 2026 IS 2025 PB Saint-Petersburg University of State Fire Service of Emercom of Russia