436 

14 CFR Ch. I (1–1–19 Edition) 

Pt. 25, App. F 

(iv) 

Thermocouples. 

Provide seven 

1

⁄

8

-inch 

(3.2 mm) ceramic packed, metal sheathed, 
type K (Chromel-alumel), grounded junction 
thermocouples with a nominal 24 American 

Wire Gauge (AWG) size conductor for cali-
bration. Attach the thermocouples to a steel 
angle bracket to form a thermocouple rake 

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