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Hazardous Materials Worksheet <br /> Hazards Controls - Engineering <br /> Engineering Controls (Select engineering controls to be implemented): <br /> ❑ Dust suppression (wet methods): <br /> ❑ Dust collection systems (vacuum): <br /> ❑ General (dilution) ventilation; works best when air contaminants are widely disbursed through the area. <br /> ❑ Local (exhaust) ventilation system; works well when air contaminants are generated at a single source. <br /> Describe mechanical ventilation system used.- <br /> General <br /> sed:General(Dilution) Ventilation... Local (Exhaust) Ventilation... <br /> Forces fresh air into an area andRemoves contaminated air at its <br /> dilutes contaminants, this allows air `; source; this prevents harmful dust, <br /> 2 <br /> to move through a space which ��� fumes & mists from contaminating <br /> ensures a fresh continual supply_ tea-' < the breathing air of the worker. <br /> If no engineering controls are being implemented, person authorizing the non-use of engineering controls: <br /> Name: Date: Reason (explain): <br /> Source:Construction Safety Council,used with permission. <br /> 39 <br /> PPT 1 d• v.03.01.17 OTIEC Outreach <br />