What did the MSDS (SDS) state should have been done to help prevent the explosio
ID: 1049851 • Letter: W
Question
What did the MSDS (SDS) state should have been done to help prevent the explosion involving ammonium nitrate in case study 20.1? In case study 20.2, what were the roots causes of the accident? What is the term used to describe the OSHA regulated amount of a chemical that employees may be exposed to without experiencing any adverse health effects? At what concentration (include units) does chlorine gas become IDLH? What type of respirator requires that the ambient air have a sufficient supply of oxygen (not less than 19.5%) for employees to use them safely? What three compatibility factors should an employer review before selecting chemical protective garments (e.g. suits, gloves) to make sure the chemicals do not easily deteriorate the garments? Label the "temperature" zones around this hazardous materials incident that help control access to hazardous areas for responders.Explanation / Answer
23. OSHA sets permissible exposure limits (PELs) for workers against the health effects of
exposure to hazardous substances, which also includes limits on the airborne concentrations
of hazardous chemicals in the air.
24. Based on inhalation toxicity data for humans, the IDLH for chlorine is 10 ppm
25. Atmosphere-supplying respirators like supplied air respirator can be used for this purpose.
26.a)Penetration of the outer material say, heat or flame protective clothing assembly should not be
exposed to the innermost surface of the clothing.
b)The minimum overlap must be maintained in between jacket and trousers in all positions and
in movements expected during use.
c)If more than one item is being worn, then the employee must check if any item makes it
difficult for his/her movement.
27. a) low-temperature zone
b) medium-temperature zone
c) High temperature zone or Hot-spot
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