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Large-particle entry efficiences of the MRE 113A gravimetric dust sampler

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      <subfield code="a">Ogden, T.L.</subfield>
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      <subfield code="a">Large-particle entry efficiences of the MRE 113A gravimetric dust sampler</subfield>
      <subfield code="c">T.L. Ogden, J.L. Birkett and H. Gibson</subfield>
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      <subfield code="a">The deposit in the elutriator of the MRE sampler is sometimes used rough-and-ready measure of human upper respiratory tract deposition. Entry efficiences for larger particles have therefore been studied in winds up to 4.5 m/s, mainly by exposing the instrument to monodisperse aerosols in a dust tunnel and examining the elutriator deposit; these efficiences are compared with those reported earlier for a human head</subfield>
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      <subfield code="a">The Annals of occupational hygiene</subfield>
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      <subfield code="t">The Annals of occupational hygiene</subfield>
      <subfield code="d">Oxford [etc.]</subfield>
      <subfield code="g">nº 3, December 1978 ; p. 251-263</subfield>
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