A New generation of light-scattering instruments for respirable dust measurement

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      <subfield code="a">The optical determination of respirable dust concentration by light-scattering is a suitable method for obtaining inmediate information, provided that there is a good relationship with results obtained with gravimetrical dust sampler. The Tyndallometer TM digital and its MK 2 version, the TM digital microP, have been constructed to match the definiton for respirable dust. It is a portable software-controlled instrument</subfield>
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      <subfield code="t">The Annals of occupational hygiene</subfield>
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      <subfield code="g">nº 2, 1987 ; p. 181-193</subfield>
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