what does msds definition
WHMIS 1988 - Material Safety Data Sheets (MSDSs): General. What is a Material Safety Data Sheet (MSDS)? A Material Safety Data Sheet (MSDS) is a document that contains information on the potential hazards (health, fire, reactivity and environmental) and how to work safely with the chemical product. It is an essential starting point for the development of a complete health and safety program.