On the occurrence of fibres of calcium sulphate resembling amphibole asbestos in samples taken for the evaluation of airborne asbestos

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<title>On the occurrence of fibres of calcium sulphate resembling amphibole asbestos in samples taken for the evaluation of airborne asbestos</title>
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<title>The Annals of occupational hygiene</title>
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<name type="personal" usage="primary" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080141202">
<namePart>Middleton, A.P.</namePart>
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<dateIssued encoding="marc">1978</dateIssued>
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<abstract displayLabel="Summary">The use of the membrane filter method for the assessment of airborne concentrations of asbestos fibres is well established. Sample filters are cleared using a medium such as triacetin and fibres are counted at 400-600 x magnification using a phase contrast microscope</abstract>
<note type="statement of responsibility">A.P. Middleton</note>
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<topic>Higiene industrial</topic>
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<topic>Contaminantes químicos</topic>
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<topic>Amianto</topic>
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<topic>Contaminación atmosférica</topic>
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<topic>Control de la contaminación</topic>
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<subject authority="lcshac" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="MAPA20080542856">
<topic>Anfíbol</topic>
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<topic>Sulfato cálcico</topic>
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<topic>Métodos de análisis</topic>
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<text>nº 1, March 1978 ; p. 91-93</text>
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