The Occupational Safety and Health Administration has set a Permissible Exposure Limit of 1000 parts pe million (ppm) of acetone. You are an industrial hygienist doing personal sampling on a worker who is supervising a production process that uses acetone. The upcoming exposures can be measured: 700 ppm for three hours and 1300 ppm for two hours. 3 hours at 900 ppm What is the TWA as calculated? What advice would you provide plant management regarding acetone exposure and PEL adherence?

The Occupational Safety and Health Administration has set a Permissible Exposure Limit of 1000 parts pe million (ppm) of acetone. You are an industrial hygienist doing personal sampling on a worker who is supervising a production process that uses acetone. The upcoming exposures can be measured: 700 ppm for three hours and 1300 ppm for two hours. 3 hours at 900 ppm What is the TWA as calculated? What advice would you provide plant management regarding acetone exposure and PEL adherence?

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter11: Heat Transfer By Radiation

Section: Chapter Questions

Problem 11.3DP

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The Occupational Safety and Health Administration has established a Permissible Exposure Limit of 200 parts per million (ppm) for toluene. As an industrial hygienist, you are doing personal sampling on a worker who is in charge of a production process that uses toluene. The upcoming exposures can be measured: During one hour, 500 ppm 100 ppm for four hours and 225 ppm for three What is the TWA as calculated? What advice would you provide plant management regarding toluene exposure and PEL adherence?
a) The number of kilocalories in food is determined by calorimetry techniques in which the food is burned and the amount of heat transfer is measured. How many kilocalories per gram are there in a 5.00-g peanut if the energy from burning it is transferred to 0.500 kg of water held in a 0.100-kg aluminum cup, causing a 54.9C temperature increase? (b) Compare your answer to labeling information found on a package of peanuts and comment on whether the values are consistent.
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