Merge pull request #113 from edinburghhacklab/tool/circular-saw

Circular saw risk assessment

Author: iykdw

syllabuses/Workshop/Circular Saw/risk-assessment.md

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+# Circular Saw
+
+## Injuries due to contact with blade
+
+### Severity
+
+H
+
+### Likelihood
+
+M
+
+### Risk rating
+
+M
+
+### Who may be harmed & how
+
+- User - may sustain deep lacerations or amputations due to accidental contact with the rotating blade
+- Bystanders – may be injured if user loses control of saw
+
+### Control measures
+
+- Signage – standard "moving blades" and PPE signage displayed
+- Training – users trained in safe handling, instructed to keep hands away from cutting area, training enforced by access control
+- Equipment – first aid kit available, blade guard must be functional and not removed or disabled
+
+## Injuries due to kickback
+
+### Severity
+
+M
+
+### Likelihood
+
+M
+
+### Risk rating
+
+M
+
+### Who may be harmed & how
+
+- User – may be struck by the saw if kickback causes it to lurch backward
+- Bystanders – may be hit by workpiece or saw in extreme cases
+
+### Control measures
+
+- Signage – displayed with warnings about kickback and required PPE
+- Training – users instructed on causes of kickback (e.g. starting in contact, clamping, stable support, kerf closing), and how to mitigate
+- Equipment – firm grip with both hands required, workpiece must be properly supported, first aid kit available
+
+## Hearing damage
+
+### Severity
+
+M
+
+### Likelihood
+
+L
+
+### Risk rating
+
+L
+
+### Who may be harmed & how
+
+- User – may sustain hearing damage from prolonged exposure to cutting noise
+- Bystander – may be affected by close proximity to loud operation
+
+### Control measures
+
+- Signage – indicates high noise levels and recommended hearing protection
+- Training – users instructed on which materials may cause louder cuts and to wear hearing protection
+- Equipment – ear defenders or ear plugs required for users and recommended for nearby workers
+
+## Injury due to airborne particles
+
+### Severity
+
+M
+
+### Likelihood
+
+L
+
+### Risk rating
+
+L
+
+### Who may be harmed & how
+
+- Users and bystanders – may inhale dust or have particles enter eyes, especially when cutting MDF or treated wood
+
+### Control measures
+
+- Signage – indicates particulate hazard and appropriate PPE
+- Training – users instructed to wear masks and safety glasses or goggles
+- Equipment – FFP2 (N95) or better mask required, eye protection required, eye wash kit available
+
+## Body part or clothing caught in moving parts
+
+### Severity
+
+M
+
+### Likelihood
+
+L
+
+### Risk rating
+
+L
+
+### Who may be harmed & how
+
+- User – may experience pinch, stretch, or crush injuries if hair, clothing, or jewellery becomes caught in the rotating parts
+
+### Control measures
+
+- Signage – indicates entanglement risk
+- Training – users instructed to tie back hair, remove jewellery, and avoid loose clothing
+- Equipment – first aid kit available, blade guard must be in place and functional