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Industrial Hygiene Control of Chemical Hazards II Pathway Controls

2. Supplemental Resources. The Basics of Occupational Safety (course text)Pages 366-368 of Chapter 16 briefly introduce industrial hygiene controlsSelected Internet websites, as noted in this presentation. 3. Objectives. Be familiar with characteristics of pathway (ventilation) controlsConditions

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Industrial Hygiene Control of Chemical Hazards II Pathway Controls

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    1. 1 Industrial Hygiene Control of Chemical Hazards II (Pathway Controls) PUBH 3310 October 17, 2011

    2. 2 Supplemental Resources The Basics of Occupational Safety (course text) Pages 366-368 of Chapter 16 briefly introduce industrial hygiene controls Selected Internet websites, as noted in this presentation

    3. 3 Objectives Be familiar with characteristics of pathway (ventilation) controls Conditions where general exhaust ventilation is suitable How dilution rates affect concentration Components of local exhaust ventilation Basic airflow calculations Equilibrium, C1 x Q1 = C2 x Q2 Volumetric flow, Q=VA

    4. 4 Outline Introduction General Room Ventilation Local Exhaust Ventilation (LEV)

    5. 5 Introduction “The IH Chemical Control Preference Paradigm” Desired control priority for chemical hazards Source controls Pathway controls Receiver controls

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