594 

14 CFR Ch. I (1–1–14 Edition) 

Pt. 25, App. F 

(i) The calorimeters must be a total heat 

flux, foil type Gardon Gage of an appropriate 
range such as 0–5 Btu/ft

2

-sec (0–5.7 W/cm

2

), 

accurate to 

±

3% of the indicated reading. 

The heat flux calibration method must com-
ply with paragraph VI(b)(7) of this appendix. 

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