You will work with different materials and at the end of your work you need to properly dispose them in a suitable container and can. The following are the most important notes on waste disposal:

• Listen carefully to the instruction on how to dispose a specific material that you will use in the lab.

• Familiarize yourself with the waste container location.

• You need to know the label of waste container to be able to dispose the materials in the right way. See Table 2 (Appendix II) where hazards materials are illustrated with their specific waste containers.

• Only pure water can go down the sink.

• Never mix wastes as may result in serious harm.

• If you found the waste container overfull, ask the instructor to provide a new one.

• Before glassware disposal in waste container, rinse them with water.

• If you are not sure on how to dispose something, ask your supervisor.