LD50 11 : Lethal dose 50. The median dose of a material, by any route but inhalation that kills 50% of a group of test animals. Usually expressed as milligrams or grams of material per kilogram of animal weight
W. A. N Dorland and E. J. Taylor (editors), Glossary of MSDS Terms, Texas A&M University, USA 2001. http://www.bio.tamu.edu/USERS/TONNA/GLOSSARY.HTM, (MSDS - Amer) {631}
