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OnSafeLines Free Advice on Conducting Risk Assessments and their Management to Help You Manage Health and Safety Responsibilities
Sample of a 5 x 5 Risk Assessment Matrix:
Likelihood
5. Almost Certain
4. Probable
3. Possible
2. Possible (under unfortunate circumstances)
1. Rare
Consequences
5. Fatality
4. Major Injury, resulting in disability
3. Injury Requires, Doctor's or Hospital attendance
2. Minor Injury, 1st Aid required
1. Minor Injury, 1st Aid not required
Risk Rating is calculated by multiplying the likelihood against the consequences, e.g. taking a likelihood of 4, which is classified as Probable, and multiplying this against a consequence of 2, which is classified as a Minor Injury 1st aid required, would give you and overall risk rating of 8, which would be risk rated as a low risk.
High risk equals 16 to 25.
High Risks activities should cease immediately until further control measures to mitigate the risk are introduced.
Medium risk equals 9 to 15.
Medium Risks should only be tolerated for the short-term and then only whilst further control measures to mitigate the risk are being planned and introduced, within a defined time period. Note: Medium risks can be an organisations greatest risk, it's achilles heel, this due to the fact that they can be tolerated in the short-term.
Low risk equals 1 to 8.
Low Risks are largely acceptable, subject to reviews periodically, or after significant change etc...
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Note, this article is continued on the previous pages.
5
5
L I K E L I H O O D
CONSEQUENCES
10
15
20
25
4
4
8
12
16
20
3
3
6
9
12
15
2
2
4
6
8
10
1
1
2
3
4
5
1
2
3
4
5
Risk
Low
Medium
High
Risk Assessment 5 x 5 Risk Matrix
risk assessment matrix 5x5
