Failure Mode and Effect Analysis for a Programmable Logic Controller-Based Control Unit for a Miniature Neutron Source Reactor Pneumatic Transfer System

Table 3

Likelihood of detection of failures.

Likelihood of detection	Criteria: likelihood of detection	Rating
Uncertain	Uncertain that failure will be detected	10
Low	Low chance that failure will be detected	9
		8
Moderate	Moderate chance that failure will be detected	7
		6
High	High chance that failure will be detected	5
		4
Very high	Very high chance that failure will be detected	3
		2
Certain	Certain that failure will be detected	1