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Figure D3.1 Hazards and Effect Prevention, Control and Mitigation

Hazard Event (Conditions leading to major
No Threat, Cause or Initiating Event Effect / Consequence Preventive Measures Control / Mitigations
accident)
1 Dropped or damaged drum, causing Mishandling of drum during loading Chlorine gas dispersion (loss of Technical: Emergency Scrubber System
rupture of weakened drum joint weldment / and unloading from truck containment) 1. Inherently safe design of chlorine Emergency Response Plan
shelf plant
Mishandling of drum during replacing 2. Overhead crane (with valid PMA)
duty / standby drum 3. Gas detector and alarm system

Non-Technical:
1. Safe work practice
2. Emergency drill
3. Trained Personnel
4. Signages-hazardous material
5. PPE
2 Dropped or damaged drum valve, causing Mishandling of drum during loading Chlorine gas dispersion (loss of Technical: Emergency Scrubber System
failure of valve and unloading from truck containment) 1. Inherently safe design of chlorine Emergency Response Plan
plant
Mishandling of drum during replacing 2. Overhead crane (with valid PMA)
duty / standby drum 3. Gas detector and alarm system

Non-Technical:
1. Safe work practice
2. Emergency drill
3. Trained Personnel
4. Signages-hazardous material
5. PPE
3 Corrosion and pitting of drum shelf or Improper and inadequate Chlorine gas dispersion (loss of Technical: Emergency Scrubber System
valve qualification inspection and testing of containment) 1. Inherently safe design of chlorine Emergency Response Plan
drum plant
2. Gas detector and alarm system
Non-Technical:
Authorised Drum Manufacturer
Trained maintenance personnel
Regular inspection
Maintenance Plan