Penetration of several filter materials by asbestos as a function of fiber dimensions

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      <subfield code="a">The purpose of this research was to determine the penetration of several filter materials commonly used in building air handling systems by asbestos fibers. An airstream containing tremolite asbestos fibers was passed through these materials and the upstream and downstream fiber concentrations were measured by membrane filtration and scanning electron microscopy</subfield>
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      <subfield code="a">American Industrial Hygiene Association journal</subfield>
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      <subfield code="t">American Industrial Hygiene Association journal</subfield>
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      <subfield code="g">Vol. 53, nº 12, December 1992 ; p. 767-772</subfield>
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