Safety information on all chemicals is to be kept on-hand in the darkroom and above the sinks. You should never use chemicals without authorization and instruction. Consult the appropriate protocols, kept in the file cabinet, before processing any material requiring a USDA permit. The fine dust from marine and freshwater shells and from soil can be harmful is inhaled. Wear a dust mask when you screen shell or otherwise produce shell dust.
Archaeological materials are priceless and equipment is expensive.
Eating is never permitted while working , and eating in the laboratory is strongly discouraged. Occasional eating is permissible if, and only if, food is consumed far enough away from all archaeological collections and supplies so that there is no chance of contamination or damage, and all traces of food, wrappers, packaging, etc. are completely cleaned up afterward. You may drink while you work only if your beverage container has a secure lid on it. Please recycle bottles and cans in the appropriate recepticle. If bottles and cans are found strewn around the lab, we may have to preclude everyone from drinking beverages.