My Blog Site whsblog.com   OHS and Safety
 

My Blog Site    whsblog.com

Anything of interest to the OHS Committee in NSW,

People at work, Safety, Travel and anything quirky or funny.

 

Risk Matrix

 

There are any number of different risk matrices.  They range from a 3*3 matrix with risk values of H, M and L.  There is a 4*4 matrix with scores from 1 to 6, as well as a 5*5 with a range of scores. 

Below id just one example of a 5*5 matrix as well as a description of what the values mean.  

5*5 Risk Matrix

 

A) Almost certain; will occur at least once per month

B) Likely; will occur at least once per month to once per year.

C) Occasionally; Expected to occur at least 1 year to 10 years

D) Unlikely; Occurs every 10 years to 100 years

E) Rare; Occurs less than once every 100 years

 

 

An example of a 4*4 Matrix.  In this example numerical values have been replaced with risk descriptions.

4*4 Matrix

 

An example of a 3*3 matrix.  This size matrix gives results of High, Medium or Low

3*3 Matrix

 

 

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