ORMIT UNIVERSITY
Executive Summary This risk assessment report examines the increased number of HDB lift occurrences by determining the main cause and hazards existing in the HDB lift environment, such as plant, chemical, and biological hazards. The goal of this paper is to help lift technicians reduce the risks and dangers they face in the workplace. A risk assessment will be undertaken to assess the three most hazardous plant risks, two most toxic chemical hazards, and one most dangerous biological hazard, both with and without control measures. Following that, a risk reassessment will be demonstrated using the ALARP concept, as well as the cost-effectiveness of implementing these controls. Each hazard will be evaluated and recommendations will be made. Finally, before concluding this report, a brief lift maintenance- purchasing policy will be covered for future purchases. 2
Table of Contents 1.0 Introduction 4 2.0 Analysis of Lift Incidents. 4 2.1 Root Cause of Incidents. 4 2.2 Hazards in the HDB Lift Environment. 5 2.2.1 Main Plant. 5 2.2.2 Chemical Hazards. 5 2.2.3 Biological Hazards 5 2.3 Risk for lift technicians. 6 2.3.1 Three Highest-risk Plant Hazards 6 2.3.2 Two Highest-risk Chemical Hazards 6 2.3.3 One Highest-risk Biological Hazard 6 2.4 Risk Assessment. 7 3.0 Control Measures. 8 3.1 Control Measures for Plant Hazards. 9 3.2 Control Measures for Chemical Hazards 9 3.3 Control Measures for Biological Hazard. 9 4.0 Risk Reassessment. 10 4.1 Conformity to ALARP Principle & Cost Effectiveness 10 5.0 Recommended Controls. 11 5.1 Recommendation for Plant Hazards 12 5.2 Recommendation for Chemical Hazards 12 5.3 Recommendation for Biological Hazard 12 6.0 Lift Maintenance-purchasing Policy .. 13 6.1 Preffpurchase 13 6.2 Postffpurchase. 13 7.0 Conclusion 14 8.0 References. 15 9.0 Appendix 16 3