Preliminary evaluation of an active end-of-service-life indicator for organic vapor Cartridge respirators

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      <subfield code="a">Preliminary evaluation of an active end-of-service-life indicator for organic vapor Cartridge respirators</subfield>
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      <subfield code="a">Data are presented on a microwatt chemiresistor microsensor for use with negative-pressure organic vapor respirators. This sensor would operate at or within a sorbent bed and detect parts per million levels of chemical vapors and/or gases as a function of sensor resistance</subfield>
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      <subfield code="g">Vol. 54, nº 8, August 1993 ; p. 417-425</subfield>
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