Calibration of a spinning disc aerosol generator and two-stage air samplers /
by Jennings E. Partridge and Harry J. Ettinger.

Description

Main Author

Partridge, J. E. (Jennings Emerson)

Related Names

Ettinger, Harry J., author.
Los Alamos Scientific Laboratory.
U.S. Atomic Energy Commission.

Language(s)

English

Published

Los Alamos, New Mexico : Los Alamos Scientific Laboratory of the University of California, 1969.

Subjects

Air sampling apparatus.
Aerosols.

Summary

A spinning disc aerosol generator was calibrated using various concentrations of 80% methylene blue, 20% uranine in ethyl alcohol. Monodisperse aerosols with count median diameters ranging from 1.45 to 7.48 [mu]m, and geometric standard deviations ranging from 1.03 to 1.10 were produced. The aerosol generator constant (K) was 4.90 ©œ+ 0.25. Two different types of two-stage samplers were calibrated using monodisperse aerosols produced by this generator. One type, using a horizontal elutriator as the first-stage size selector, agreed with the criteria defining respirable dust adopted by the British medical Research Council. The other type, using a small cyclone as the first-stage size selector, agreed with criteria proposed at the Los Alamos Conference when operated at approximately half its recommended flow rate. Operations of this cyclone at its recommended flow rate underestimates any inhalation hazard.

Note

"LA-4066; UC-41, Health and Safety; TID-4500."
"Written: December 15, 1968; Distributed: February 26, 1969."
"United States Atomic Energy Commission Contract W-7405-Eng. 36"--Cover.

Physical Description

14 pages : illustrations ; 28 cm

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