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A Feasibility study of quantitative respirator fit testing by controlled negative pressure

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      <subfield code="a">Crutchfield, Clifton D.</subfield>
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      <subfield code="a">A Feasibility study of quantitative respirator fit testing by controlled negative pressure</subfield>
      <subfield code="c">Clifton D. Crutchfield, Martin P. Eroh, Mark D. Van Ert</subfield>
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      <subfield code="a">The feasibility of using a direct measure of respirator leakage flow rate as a quantitative index of respirator face seal fit has been explored through the use of a new controlled negative pressure method. The method is based on exhausting air from a temporarily sealed respirator facepiece at a rate sufficient to generate and then sustain a constant negative pressure inside the facepiece while the wearer holds his breath</subfield>
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      <subfield code="a">Equipos respiratorios</subfield>
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      <subfield code="a">Mascarillas autofiltrantes</subfield>
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      <subfield code="a">Eroh, Martin P.</subfield>
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      <subfield code="a">Ert, Mark D. van</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 4, April 1991 ; p. 172-176</subfield>
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