Chapter 5: ACUTE TOXICITY DEFINITIONS 1. Acute toxicity refers to those adverse effects occurring following oral or dermal administration of a single dose of a substance, or multiple doses given within 24 hours, or an inhalation exposure of 4 hours.ee paragraph 2 for the acute toxicity classification criteria. Therefore the classification of substance Y is as follows: Acute Toxicity Category 3 (by the oral and inhalation routes) Although not needed for the classification of Mixture A, the labelling of Substance Y can be determined at this point.
New Horizons launched on January 19, 2006, and it'll reach Pluto on July 14, 2015. Do a little math and you'll find that it has taken 9 years, 5 months and 25 days. The Voyager spacecraft did the distance between Earth and Pluto in about 12.5 years, although, neither spacecraft actually flew past Pluto.ew Horizons made the fastest journey to Pluto, but it's also going to fly past the planet at 50,000 km/h. That's less time to take high resolution images. And if you wanted to actually go into orbit around Pluto, you'd need more rockets to lose all that velocity.
One day on Pluto (one rotation around its axis) is roughly 6.4 Earth days. A year (one orbit around the Sun) is about 248.09 Earth years. See related link for more infor â¦ mation. Pluto's sidereal rotation period is 6 days, 9 hours, 17 minutes, and 36 seconds.48 people found this useful.ne year on Pluto (the time it takes Pluto to revolve around the Sun) is 248 Earth years, or about 90471 Earth days long. Answer: Due to its orbit, one Pultonian year is abou â¦ t 248 years on Earth.