Other findings of the above cases include:
1) Inadequate labeling of chemical waste bottles
2) Insufficient training and supervision provided for persons carrying out the work
3) A risk assessment was not conducted before the start of the work
4) Safe work procedures were not implemented
5) Personal protective appliances were not worn during work
Stakeholders performing similar work activity can undertake control measures such as the following to prevent a recurrence:
1. Prior to work, conduct a proper risk assessment to identify all hazards and the risks involved. Control measures and safe work procedures must be established and implemented.
2. Safe work procedures and precautions have to be strictly adhered to when handling hazardous substances such as flammable or corrosive chemicals and oxidising agents.Hazard communication and work practices
3. Ensure all chemical containers and waste bottles are properly labelled, stating clearly the identity of the content, hazards nature and precautionary measures whenever possible.
4. Incompatible chemicals like acid and strong oxidisers should not be mixed. Refer to the safety data sheets for any incompatible reactions.
5. Reusing of chemical containers should be avoided as far as possible. However, if containers are reused, they should be cleaned adequately before used to minimize contaminations and undesirable reactions.
6. Stakeholders should maintain good housekeeping in the laboratories. Workbenches and fume hoods should not be cluttered. Aisles and exits should be free from obstructions.
Courtesy from WSH Council. For more info, pleas visit http://www.wshc.sg