- Label all containers (e.g., squeeze bottles, wash bottles, and Nalgene bottles) to which hazardous materials are transferred with the identity of the substance and its hazards. See the section entitled Container Labels for more information.
- Be aware that squeeze bottles and Nalgene bottles have varying resistances to different chemicals. (They are usually made from plastics, such as high-density polyethylene, low-density polyethylene and polypropylene). Moreover, they may deteriorate over time, especially when exposed to direct sunlight or UV sources. Consult the Nalgene selection guide to determine the chemical resistance of different plastic materials.