Apologies, misread and misspoke. Is for a 24 hour period (for humans). <blushes> I'll stick with the day job... wait a minute... D'OH! Well, at least I'm still in training... heh... Pete
-- Henk Verhaar <[EMAIL PROTECTED]> wrote: Definition of LD50 (median lethal dose) is: that dose that will kill 50% of all test subjects within a set period of time (LD50 or LC50 values should always be accompanied by a time frame. Acute fish LC50s e.g. are for survival after 96 hours of continuous exposure). <snip> ________________________________________________________________ Juno Gift Certificates Give the gift of Internet access this holiday season. http://www.juno.com/give
