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6:47 Done ASSIGNMENT 5- EVALUATION O... If there is risk for death, we dont use likehood x severity. We take the risk value (area) 4. Consider the following tables for risk evaluation Risk Assessment Control Measure From 1-4 = Low Risk From 5-10 Med Risk From 12-25 = High Risk Very Unlikely 1 Rarely Occur 2 Likelihood (Probability) FREQUENCY Negligible 1 1 2 3 Likely Occur 4 4 once year 16-20 25 less than once 1 a year Occurs Frequently once a week Fig 7.2. Risk evaluation matrix 1-2-3 = Negligible 21 N Possible 3 once 3 a month Small cut few suture burns, Bone crush 1 1 2 3 4 Squares Risk value 1-2-3 5 5 5 Fig 7.2. Risk Control Hierarchy application 2 1. ELIMINATION 2 4 6 8 SEVERITY 10 Finish the hazard at source 3 6 4.ADMINISTRATIVE CONTROLS Machine guards, isolation, ventilation, etc 9 5. PPE PERSONAL PROTECTIVE EQUIPMENT 12 Minor 15 2. SUBSTITUTION Change with a weaker hazard 3. ENGINEERING CONTROLS Machine guards, isolation, ventilation etc 2 2 4 6 8 10 4 once 5 a day 5x 5 order Risk Assessment Matrix(number of raws x number of columns) Fig 7.2. Risk evaluation matrix (5x5 order) amputation death contagious disease without vaccine 5 disease 4 8 12 Severity Moderate 3 3 6 9 12 16 20 5 10 15 20 15 25 1 4-5-6-8 2 9-10-12-15 3 4 5 Consider the Risk Control Major Extreme 4 4 8 12 16 20 4-5-8 Low risk- we try to lower it in the long term, such as 3 months Hierarchy to explain the measures During prevention from Hazards, we use Risk Control Hierarchy. Explanation of the Graphic 9-10-12-15 Medium Risk, we need to lower it in a shorter time, eg: 1 week To understand the graphic, we shall look at some examples 55 5 10 15 20 We always need to go step by step. And PPE should be always at the last step 25 16-20 =High Risk. We try to minimize the risk on the same day 25 = Emergency. We stop working. Apply precautions, minimize the risk =

If there is risk for death, we dont use likehood x severity. We take the risk value (area) 4. Consider the following tables for risk evaluation Fig 7.2. Risk evaluation matrix 12.3= Neplisible If there is risk for death, we dont use likehood x severity. We take the risk value (area) 4. Consider the following tables for risk evaluation Fig 7.2. Risk evaluation matrix 12.3= Neplisible

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