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A Comparison of controlled negative pressure and aerosol quantitative respirator fit test systems by using fixed leaks

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      <subfield code="a">Crutchfield, Clifton D.</subfield>
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      <subfield code="a">A Comparison of controlled negative pressure and aerosol quantitative respirator fit test systems by using fixed leaks</subfield>
      <subfield code="c">Clifton D. Crutchfield, Richard W. Murphy and Mark D. Van Ert</subfield>
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      <subfield code="a">An automated version of a new method for quantitative respirator fit testing by controlled negative pressure was compared with a computerized aerosol fit system. The controlled negative pressure technique eliminates many of the problems associated with aerosol and pressure decay fit test methods. A series of fixed leaks was used to compare the leak measurement capablities of the controlled negative pressure system against a standard computarized aerosol fit test system</subfield>
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      <subfield code="a">Contaminantes químicos</subfield>
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      <subfield code="a">Aerosoles</subfield>
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      <subfield code="0">MAPA20080601393</subfield>
      <subfield code="a">Equipos respiratorios</subfield>
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      <subfield code="a">Murphy, Richard W.</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>
      <subfield code="d">Akron, Ohio</subfield>
      <subfield code="g">Vol. 52, nº 6, June 1991 ; p. 249-251</subfield>
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