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Lack of confidence in results obtained by SEM for airborne fibre concentration evaluation for dust sampled on porous membrane filters

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      <subfield code="a">Lack of confidence in results obtained by SEM for airborne fibre concentration evaluation for dust sampled on porous membrane filters</subfield>
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      <subfield code="a">A drawback for SEM investigation of airborne particulates sampled on porous membrane filter is presented to the effect that such filters should not be used for fibre counting in SEM analysis</subfield>
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      <subfield code="g">nº 1, February 1990 ; p. 101-105</subfield>
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