Evaluation of hazards in CO2 laser welding and related processes

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<title>Evaluation of hazards in CO2 laser welding and related processes</title>
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<title>The Annals of occupational hygiene</title>
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<namePart>Hietanen, M.</namePart>
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<abstract displayLabel="Summary">High-power CO2 lasers are used extensively in various industrial applications. In most cases they form part of open-beam equipment and have a power of several kilowatts, and are thus designated as Safety Class 4 systems. In addition to the invisible i.r. laser beam, u.v. radiation and visible light may be emitted. In the present work a power meter controlled by microprocessor and a spectroradiometer measured the scattered or reflected laser radiation. In addition, concentration levels of welding and cutting fumes and of pyrolysis products of plastics were determined during various laser processes. Finally, a safety analysis was performed to compare the hazards of laser welding with those of conventional welding methods</abstract>
<note type="statement of responsibility">M. Hietanen... [et al.]</note>
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<topic>Contaminantes físicos</topic>
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<topic>Radiaciones ultravioletas</topic>
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<topic>Láser</topic>
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<topic>Contaminantes químicos</topic>
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<topic>Monóxido de carbono</topic>
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<topic>Soldadura</topic>
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<title>The Annals of occupational hygiene</title>
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<text>nº 2, April 1992 ; p. 183-188</text>
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