Smoking, eating, drinking, and applying cosmetics in the lab or experimental work area are forbidden. Report all accidents, injuries, and close-calls to your professor or teaching assistant immediately. Dispose of chemicals properly. Nothing goes down the drain unless your professor or teaching assistant instructs you to do so. Containers should be available for waste chemicals.
Broken glass goes in special receptacles.
Never return unused reagents to the reagent bottle. Be careful to take only what you actually need. Do not contaminate the reagents. Clean up all spills immediately. This includes water.