From: Failure mode effect and criticality analysis of ultrasound device by classification tracking
Score
Occurrence
(failure frequency)
1
< 0.02%
2
0.02%
3
≤ 0.2%
4
≤ 1%
5
≤ 2%
6
≤ 4%
7
≤ 6%
8
≤ 8%
9
≤ 10%
10
> 10%