567 

Federal Aviation Administration, DOT 

Pt. 25, App. F 

(1) Description of the specimen. 
(2) Radiant heat flux to the specimen, ex-

pressed in W/cm

2

. 

(3) Data giving release rates of heat (in kW/ 

m

2

) as a function of time, either graphically 

or tabulated at intervals no greater than 10 
seconds. The calibration factor (k

n

) must be 

recorded. 

(4) If melting, sagging, delaminating, or 

other behavior that affects the exposed sur-
face area or the mode of burning occurs, 
these behaviors must be reported, together 
with the time at which such behaviors were 
observed. 

(5) The peak heat release and the 2-minute 

integrated heat release rate must be re-
ported. 

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