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The TLV-TWA for a substance is 150 ppm. A worker begins a work shift at 8 A.M. and completes the shift at 5 P.M. A one-hour lunch break is included between 12 noon and 1 P.M., where it can be assumed that no exposure to the chemical occurs. The data were taken in the work area at the times indicated. Has the worker exceeded the TLV specification,? Time S.00 10.00 11.00 12.00 2.00 4.00 P.M 5.00 9.00 1.00 3.00 A.M AM АМ AM PM PM P.M PM P.M (ppm) 110 130 143 162 142 157 159 165 153 130

The TLV-TWA for a substance is 150 ppm. A worker begins a work shift at 8 A.M. and completes the shift at 5 P.M. A one-hour lunch break is included between 12 noon and 1 P.M., where it can be assumed that no exposure to the chemical occurs. The data were taken in the work area at the times indicated. Has the worker exceeded the TLV specification,? Time S.00 10.00 11.00 12.00 2.00 4.00 P.M 5.00 9.00 1.00 3.00 A.M AM АМ AM PM PM P.M PM P.M (ppm) 110 130 143 162 142 157 159 165 153 130

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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The TLV-TWA for a substance is 150 ppm. A worker begins a work shift at 8 A.M. and completes the shift at 5 P.M. A one-hour lunch break is included between 12 noon and 1 P.M., where it can be assumed that no exposure to the chemical occurs. The data were taken in the work area at the times indicated. Has the worker exceeded the TLV specification,? Time 8.00 9.00 10.00 11.00 12.00 1.00 2.00 3.00 4.00 P.M 5.00 А.М A.M A.M A.M PM P.M P.M P.M P.M C (ppm) 110 130 143 162 142 157 159 165 153 130
Transcribed Image Text:The TLV-TWA for a substance is 150 ppm. A worker begins a work shift at 8 A.M. and completes the shift at 5 P.M. A one-hour lunch break is included between 12 noon and 1 P.M., where it can be assumed that no exposure to the chemical occurs. The data were taken in the work area at the times indicated. Has the worker exceeded the TLV specification,? Time 8.00 9.00 10.00 11.00 12.00 1.00 2.00 3.00 4.00 P.M 5.00 А.М A.M A.M A.M PM P.M P.M P.M P.M C (ppm) 110 130 143 162 142 157 159 165 153 130
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