Store away from floor drains or sinks or use secondary containment in case of spillage. Disposal of chemical waste down the sink is prohibited. Evaporation of solvents is also considered a prohibited means of disposal. Waste stickers should not be used for used oils. Incompatible wastes must be stored separately.
Unknown wastes are illegal.
You must keep track of wastes being accumulated. If you are unsure, consider it hazardous waste and contact EHS to arrange for characterization. Chemicals with no foreseeable use should be disposed of promptly. Regular laboratory chemical containers must be labeled with the contents or some type of identification. Unlabeled containers might be mistaken for unknown waste.