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1 Zenith 100 120 Mobile Crushing And Screening Plant 4 Selenite Grinding Flow

1000 ppm is 0.1 because 100006 100 0.1 q. define lethal dose ld. ld is the lowest dose that causes death in any animal during the period of observation. various percentages can be attached to the ld value to indicate doses required to killd1, 50 ld50, or 99 ld99 of the test animals in the population. q.

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