If the control limits for both and are met on 2 or more typically 4, preferably 5 or more, preferably closely spaced thermocouples then there is a greater than 85, preferably greater than 90% probability that conditions leading to {TAIL ~ an increased likelihood} of {HEAD ~ a decomp exist} 
If the control limits for both and are met on 2 or more typically 4 , preferably 5 or more , preferably closely spaced thermocouples then there is a greater than 85 , preferably greater than 90 % probability that conditions leading to { TAIL ~ an increased likelihood } of { HEAD ~ a decomp exist }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD