for the hazard when selecting proper protection.


Don’t:


 Select hearing protection that  does not properly fit.


Select hearing protection that is not appropriate for the work- place noise level.


Melt Deck Respiratory Protection Workers in ferrous melting opera-


tions risk exposure to toxic met- als such as lead, cadmium, arsenic, chromium (either as part of the alloy or as a contaminant of the scrap being melted) and toxic gases such as carbon monoxide. Crystalline silica may be present from handling refrac- tory materials such as furnace and ladle tear-out, relining and from other metalcasting areas. For magnesium, consider acid gases when sludging, and for aluminum, consider chlorine or fluorides used for degassing. Te below respiratory protection can be used when needed:


 Half mask respirator  Full facepiece respirator


 Filtering or air purifying  facepiece respirator


Dos and Don’ts in Respiratory Protection


Do:


 Choose a respirator that is part of an effective respiratory protection program.


Don’t: In certain situations, a respiratory mask is required.


Ignore industrial hygiene monitoring of noise, dusts, metal fumes, gases and vapors when performing your hazard assessment.


 Powered air-purifying respirator Air supplied helmet or hood.


ONLINE RESOURCE


Visit www.moderncasting.com for additional safety and protective equipment articles.


August 2012 MODERN CASTING | 29


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