Heat Flux 3 : For the purposes of this standard, the rate of heat transferred per unit area to surface, typically expressed in kilowatts/m2, kilojoules/sec-m2 or Btu/sec-ft2.
NFPA 268 Standard Test Method for Determining Ignitibility of Exterior Wall Assemblies Using a Radiant Heat Energy Source, 2007 ed. (Std: Tst Meth for Determining Ign of Extr Wall Assly Using a Rad Heat Enrg Source - Amer) {280 NFC}
