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.
It took total of 5 days, 22 hours and 54 minutes to fly to the Moon and return back to Earth. The shortest trip to the Moon took place in January 2006 by the NASA Pluto probe New Horizons. With the speed of 58,000 km/hr, it only took 8 hours and 35 minutes to get to the Moon from Earth. The longest trip took place in 2003 by the ESA SMART-1 lunar probe.