Before you can properly dispose of your hazardous glass waste, you must first ensure all your disposal items have been adequately identified. The most common types of laboratory glass waste include pipettes, slides, plastic ware, syringe bodies, and any broken containers. Hazardous glass and plastic waste should never be placed directly into the trashcan or other garbage receptacles. Because of the high risk of contamination, specially designed containers should be used. Plastic-lined cardboard boxes that are sturdy and leak proof are the best options.