CFR > Title 41 - Public Contracts and Property Management > SUBTITLE C—Federal Property Management Regulations System > CHAPTER 102—FEDERAL MANAGEMENT REGULATION (parts 102 to 102-197) > SUBCHAPTER C—REAL PROPERTY (parts 102-71 to 102-86) > PART 102-80—SAFETY AND ENVIRONMENTAL MANAGEMENT > SUBPART C—Accident and Fire Prevention (§102-80.80 to §102-80.150) > 102-80.145—What is meant by “flashover”?

102-80.145—What is meant by “flashover”?

Flashover means fire conditions in a confined area where the upper gas layer temperature reaches 600 °C (1100 °F) and the heat flux at floor level exceeds 20 kW/m2 (1.8 Btu/ft2/sec).