REPORT NUMBER: 
ISSUE DATE: 
PAGE: 
FR10430-001 ISSUE 2 
1 June 2023 
13 of 21 
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Figure 4: Furnace Pressure 
 
In summary, the furnace conditions complied with the test standard. 
3.3 
Specimen Temperature Measurement 
The temperature on the unexposed face of the test specimen was measured using chromel-
alumel thermocouples mounted on copper discs and covered with insulating pads, in 
accordance with clause 2.2.3 of the test standard.  
The thermocouples were placed on the wall as shown in Figure 5. 
All the thermocouples described above were connected to a computer controlled data logging 
system which recorded the temperatures at 15 second intervals.  
A roving thermocouple was available for measuring temperatures elsewhere on the specimen. 
 
 
 
 
 
 
 
-6
-4
-2
0
2
4
6
8
10
12
0 
20 
40 
60 
80 
100 
120 
140 
Pressure (Pa)
Time (minutes)
Probe
Target
Limit

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