American Industrial Hygiene Association Journal 1990-05-01

Identification of faceseal leak sites on a half-mask respirator.

R K Oestenstad, J L Perkins, V E Rose

文献索引：Am. Ind. Hyg. Assoc. J. 51(5) , 280-4, (1990)

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摘要

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. Faceseal leak sites on a respirator mounted on a mannequin and worn by human subjects were identified by deposition of the tracer aerosol and subsequent observation under long-wave ultraviolet lighting. Test parameters were identified for the optimal definition of leaks. Photographic techniques were developed to document the identified leak sites.

相关化合物

  • 7-二乙氨基-4-甲基...

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