LC50 24 : Median Lethal Concentration. A statistically derived concentration that can be expected to cause death in 50% of animals exposed for a specific time
The Association of Petrochemicals Producers in Europe (APPE), The European petrochemical industry, Glossary of Terms on Chemical Safety for Use in IPCS Publications, van Nieuwenhuyse, Brussels 2006. http://www.petrochemistry.eu/glossary.html, (Petrochem Ind - Brit) {473}