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Company has 6 welding booths partitioned with welding curtains. the booths are open to mixing at the front and top. the employer is concerned about...
Company has 6 welding booths partitioned with welding curtains. the booths are open to mixing at the front and top. the employer is concerned about exposure to iron oxide pel 10 mg/m3.
determine the employees actual exposure to iron oxide from the given data chart.
Are the samples valid? if not, why? show work.
During further evaluation you determine each booth uses local exhaust system to remove the iron oxide and other contaminants prior to mixing with breathing air. see chart for measurements. measure and calculate the performance of the local exhaust system.
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