HEALTH PRECAUTIONS IN THE DARKROOM Most chemicals in black and white photography are not very harmful in the small exposure we experience in class; however we should limit our contact with any chemicals to be on the safe side. There are three routes of exposure by which chemicals can affect our bodies. They are: 1) Inhalationbreathing chemical dusts, powders or vapors; 2) Absorption- Skin contact with chemicals; 3) Ingestionchemicals entering via the mouth. Follow these rules to limit you exposure to darkroom chemicals. 1. Use print tongs or wear rubber or plastic gloves when printing to limit the absorption of chemicals through the skin. Some people may be allergic to some of the chemicals causing a rash up repeated contact. 2. Wash hands with soap and water after each session in the darkroom or processing room. Dried chemicals on the hands can be ingested by contact with the mouth or cause irritation if transferred to your eyes. 3. **Clean up all spills of chemistry while it is still wet. As the chemical evaporates, the chemical powder that is left can become airborne and mix with the air we breathe. 4. **Wipe sink ledges and counter top with a damp paper towel before and after working. 5. Rinse prints in water before bringing them for inspection under white light. 6. Do not eat or smoke until after you have washed your hands with soap and water to avoid getting chemicals in your mouth. 7. If you have contact lenses do not wear them during extended printing sessions in the darkroom (over two hours).Chimerical vapors can collect between the contact lens and the cornea, causing irritation. Wear glasses instead. 8. Chemicals will stain and ruin your clothes! So be careful. An apron or a smock is also good ideas. Also having an old hand towel will be helpful. Launder your hand towel often. 9. Misbehavior in the darkroom my cause others harm or destroy their Artwork and exposure. Parent Signature_______________________________ Student Signature______________________________ Date____________