Evaluation of airborne asbestos fiber levels during removal and installation of valve gaskets and packing

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      <subfield code="a">This project was designed to evaluate airborne asbestos fiber levels generated during dry installation and removal of asbestos containing gaskets and packing materials. Every effort was made to simulate work practices commonly utilized by pipefitters and maintenance personnel in the past when asbestos exposures were not a concern</subfield>
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      <subfield code="g">Vol. 53, nº 8, August 1992 ; p. 531-532</subfield>
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