You have collected three samples for lead fume using 0.8 um pore size MCE filters in...
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You have collected three samples for lead fume using 0.8 um pore size MCE filters in closed face 37-mm cassettes with a sampling pump that you assumed was operating at a flow rate of 3.0 L/min. Each sample was collected for 7 hours and on this basis the laboratory reported the following results: Sample No. 1-0.080 mg/m² Sample No. 2-0.065 mg/m² Sample No. 3 -0.030 mg/m² However, after double checking your rotameter calibration curve, you find that the pump was sampling at a flow rate of 2.5 L/min. What are the corrected results for the samples? a) Sample No. 1 = b) Sample No. 2 = c) Sample No. 3 = You have collected three samples for lead fume using 0.8 um pore size MCE filters in closed face 37-mm cassettes with a sampling pump that you assumed was operating at a flow rate of 3.0 L/min. Each sample was collected for 7 hours and on this basis the laboratory reported the following results: Sample No. 1-0.080 mg/m² Sample No. 2-0.065 mg/m² Sample No. 3 -0.030 mg/m² However, after double checking your rotameter calibration curve, you find that the pump was sampling at a flow rate of 2.5 L/min. What are the corrected results for the samples? a) Sample No. 1 = b) Sample No. 2 = c) Sample No. 3 =
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To correct the results for the samples based on the actual flow rate of 2... View the full answer
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Making Hard Decisions with decision tools
ISBN: 978-0538797573
3rd edition
Authors: Robert Clemen, Terence Reilly
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