02490ntm a2200385Ii 4500102756600MiAaHDL20250726000000.0m d cr bn ---auaua190124s1969 nmua bt f000 0 eng d(MiU)990168840190106381sdr-miu.990168840190106381(MiU)MIU01000000000000016884019-goog(OCoLC)1083266509(MiU)Aleph016884019TRAALengTRAALMAINY 3.AT 7:22/LA-4066Partridge, J. E.(Jennings Emerson)author.Calibration of a spinning disc aerosol generator and two-stage air samplers /by Jennings E. Partridge and Harry J. Ettinger.Los Alamos, New Mexico :Los Alamos Scientific Laboratory of the University of California,1969.14 pages :illustrations ;28 cmtexttxtrdacontentunmediatednrdamediavolumencrdacarrierLA (Series) (Los Alamos, N.M.) ;4066"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.Includes bibliographical references (page 14).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.Mode of access: Internet.Air sampling apparatus.Aerosols.Ettinger, Harry J.,author.Los Alamos Scientific Laboratory.U.S. Atomic Energy Commission.Technical Report Archive & Image Library (TRAIL)3901509525900110275660020250726000000.020260302165435.02026-03-03T11:29:59Z2025-01-24T18:30:02ZSDR-MIUmiuALMAprepare.pl-004-009BKsdr-miu.990168840190106381MiUSDRGWLA016884019mdp.39015095259001MIU990168840190106381MIUGWLA20260303googlemdp.390150952590011969pdbibUS fed doc