1. Know the location of the Material Safety Data Sheets (MSDS) for all hazardous chemicals used in this procedure (developer and fixer). Read and become familiar with the safe use of these chemicals. If you have a question or concern regarding health or safety with respect to a specific chemical, consult the laboratory supervisor or the principal investigator before proceeding.
2. Always use protective clothing when performing this procedure by hand. This means wear a lab coat and latex gloves (or use tongs).
3. When using the automatic film developer, wear protective clothing when putting the developing and fixing solution into the machine (see supervisor for more instructions on how to do this).
4. Whenever you have a question or concern regarding health or safety with respect to a specific procedure, consult the laboratory supervisor or the principal investigator before proceeding.
