The Use of Light Scattering for the Detection of Filter Samples of Fibrous Aerosols

摘要

The use of light scattering from fibrous dusts has been investigated. It has been found that straight fibers have a sufficiently distinctive scattering pattern that may be counted electronically. Curved fibers may also be detected by focusing the light source so as to illuminate only a small, relatively straight, section of the fiber. Theoretical and experimental information, as well as a proposed instrument, are presented in the report. The proposed instrument would fill a need in industrial hygiene to obtain rapid, accurate measurements of personal exposures to asbestos and other fibrous dusts.