The use of a Material Safety Data Sheet (MSDS), as mandated by the Occupational Health and Safety Administration (OSHA), is an integral part of hazard communication and "right-to-know" in the work place. An MSDS for a chemical substance is designed to provide both workers and emergency personnel with procedures for handling or working with that substance. An MSDS provides information concerning safe handling procedures, first aid measures, and procedures to be taken when the substance is accidentally spilled or released. MSDSs are provided by the manufacturer and supplier of chemicals and should be available to all employees at all times. MSDSs for many substances are available on the Internet. Many MSDSs are complete, accurate, and informative, while others, especially for those chemicals a manufacturer considers to be proprietary, may be missing key pieces of information. An MSDS must contain (written in English...