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The Usefulness of void-counting for fibre concentration estimation by optical phase contrast microscopy

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<title>Usefulness of void-counting for fibre concentration estimation by optical phase contrast microscopy</title>
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<titleInfo type="alternative">
<title>The Annals of occupational hygiene</title>
</titleInfo>
<name type="personal" usage="primary" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080148072">
<namePart>Shale, Wubeshet</namePart>
<nameIdentifier>MAPA20080148072</nameIdentifier>
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<name type="personal" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080138202">
<namePart>Larsson, Gunvor</namePart>
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<dateIssued encoding="marc">1989</dateIssued>
<issuance>serial</issuance>
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<languageTerm type="code" authority="iso639-2b">eng</languageTerm>
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<abstract displayLabel="Summary">The void-counting technique for evaluation of the concentration of airbone respirable fibrous dust by phase contrast optical microscopy is assessed with respect to accuracy, reproducibility, case and saving of counting time compared with the conventional method of fibre counting. The method is found to have several advantages over the latter. It is concluded that more reliable and accurate estimates are obtained in the routine evaluation of airbone fibrous dust concentrations by using the void-counting method, provided the sampling is conducted properly</abstract>
<note type="statement of responsibility">Wubeshet Sahle and Gunvor Larsson</note>
<subject authority="lcshac" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080585679">
<topic>Higiene industrial</topic>
</subject>
<subject authority="lcshac" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080616441">
<topic>Contaminación atmosférica</topic>
</subject>
<subject authority="lcshac" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080621186">
<topic>Control de la contaminación</topic>
</subject>
<subject authority="lcshac" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080541026">
<topic>Fibras</topic>
</subject>
<subject authority="lcshac" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080542832">
<topic>Amianto</topic>
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<subject authority="lcshac" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080567699">
<topic>Void-counting</topic>
</subject>
<subject authority="lcshac" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080591960">
<topic>Métodos de análisis</topic>
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<topic>Muestreos</topic>
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<topic>Suecia</topic>
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<title>The Annals of occupational hygiene</title>
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<publisher>Oxford [etc.]</publisher>
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<part>
<text>nº 1, 1989 ; p. 97-111</text>
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