Dear friends
I'm preparing the training material (mostly about ISO 22000) including Hazard Analysis and categorization of control measures.
I'm going to evaluate each hazard at every process step if there is any control measure against this hazard.
Severity 1...3 points, Likelihood 1...3 points, Reduction at next stages 1...3 points.
Risk = Severity * Likelihood / Reduction * 100%. Each assessed stage will have a percent value of Risk relatively the hazard from 0 to 100%.
The question: which risk percentage you'd recommended for each control measures category?
For example
0...20 % means PRP (7.2.3 ISO 22000), 21...50% OPRP (7.5 ISO 22000), 51...90 means CCP plan HACCP (7.6 ISO 22000), 91 and more - recommendation to improve the process.
The method should be applicable for all production sectors.