LCLO 4
LCLO 4 : Lowest Lethal Airborne Concentration Tested. See also: LC50 and LD50. LD stands for lethal dose. LD50 is the amount of a material, given all at once, which causes the death of 50% (one half) of a group of test animals. The LD50 can be determined for any route of entry, but dermal (applied to skin) and oral (given by mouth) LD50's are most common. The LD50 is one measure of the short-term poisoning potential of a material. See also: LC50. More detailed information is available in the CCOHS publication "What is an LD50?"
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