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Today's Terms
Lethal Concentration(50) (LC50)
Definition: A calculated concentration of a chemical in air to which exposure for a
specific length of time is expected to cause death in 50% of a defined experimental animal population.
Suspect material
Definition: Building material suspected of containing asbestos, e.g., surfacing material, floor tile, ceiling tile, thermal system insulation, and miscellaneous other materials.
Amosite
Definition: A type of asbestos in the amphibole group; it is also known as brown asbestos.
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