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Formal document containing important information about the characteristics and actual or potential hazards of a substance. It identifies the manufacturer of the material (with name, address, phone, and fax number) and usually includes (1) chemical identity, (2) hazardous ingredients, (3) physical and chemical properties, (4) fire and explosion data, (5) reactivity data, (6) health hazards data, (7) exposure limits data, (8) precautions for safe storage and handling, (9) need for protective gear, and (10) spill control, cleanup, and disposal procedures. Mandated by the US Occupational Safety and Health Administration (OSHA), it is used also in many other countries in one form or the other. Called chemical safety data sheet (CSDS) in Europe.