Identification of faceseal leak sites on a half-mask respirator

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      <subfield code="a">A method has been developed to identify the location and shape of respirator faceseal leak sites by the deposition of a fluorescent tracer. An aerosol generation, conditioning, and exposure system to provide a test environment with stable aerosol concentration and size distribution of 4-methyl-7-diethylaminocoumarin was designed and tested</subfield>
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      <subfield code="g">Vol. 51, nº 5, May 1990 ; p. 280-284</subfield>
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