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The time-weighted average or permissible exposure limit is 5 mg/m3; iron oxide is not a toxic product.But may cause irritation to eyes and respiratory tract.
Yes. A hurricane cannot go any higher than the tropopause, which is no more than 11 miles above the surface.
A neutron star, or a black hole. Which it is, depends on the mass that remains after the supernova explosion. Above a certain mass limit, a black hole will form.
AnswerTire pressure is supposed to be measured while the tire is cold. Tire pressure is higher when the tire is hot; therefore, the pressure of a hot tire will drop below its limit when it cools down.
no there is not a limit to how small a living cell could be
3 percent
The permissible exposure level of lead is 50ug/m3.
Permissible Exposure Limit
85db
Who permissible limit for chromium in cauliflower
The Permissible Exposure Limit (PEL) for hydrogen chloride (the gaseous form of hydrochloric acid) is 5 ppm, or 7 mg/m3, as a ceiling limit. This limit applies to airborne vapor concentrations, not to skin contact with a liquid form of this material.
5 microgram per litre
The permissible exposure limit of OSHA is 1 ppm.
30-300 mg in a 24 hr sample
Above the Limit was created in 1900-11.
The OSHA Limit (PEL or Permissible Exposure Limit) is that concentration of a hazardous material in air above which an employee may not be exposed without violating the OSHA regulation on employee exposure. Most OSHA limits were taken from consensus exposure standards in place in 1970 and have not been revised to take notice of knowledge that has been developed since then.
20 µg/m3