Record Display for the EPA National Library Catalog


Main Title A microcomputer-modified particle size spectrometer: description and program listings /
Author Lewis, Charles W.
CORP Author Environmental Sciences Research Lab., Research Triangle Park, N.C.
Publisher U.S. Environmental Protection Agency, Environmental Sciences Research Laboratory,
Year Published 1978
Report Number EPA/600-2-78-099
Stock Number PB-283 678
OCLC Number 40351796
Subjects Air--Pollution--Measurement ; Particle size determination
Additional Subjects Air pollution ; Particle size distribution ; Aerosols ; Light scattering ; Laboratory equipment ; Microcomputers ; Spectrometers ; Computer programs ; Air pollution detection ; MCA computer program
Internet Access
Description Access URL
Local Library Info
Library Local Subject Local Note
EJB Photocopy.
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 600-2-78-099 Headquarters Library/Washington,DC 09/19/2011
EJBD  EPA 600-2-78-099 Headquarters Library/Washington,DC 03/22/2016
EKBD  EPA-600/2-78-099 Research Triangle Park Library/RTP, NC 06/27/2003
ESAD  EPA 600-2-78-099 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-283 678 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation viii, 61 pages : illustrations ; 28 cm.
A fully automated aerosol particle size spectrometer system is described that consists of a light scattering particle sensor, an analog to digital converter, and a microcomputer with associated printout device. The system is capable of acquiring a differential particle size distribution, printing the resulting spectrum in one of three representations, and repeating the procedure at preselected intervals. An example of the application of the system for measuring an outdoor aerosol size distribution is presented. The appendices contain documented microcomputer program listings and flow charts for Program Sizer (the program that operates the spectrometer system and the principal result of this study) and Program MCA (a program that converts part of the spectrometer system to a conventional 256-channel pulse height analyzer).
"EPA/600-2-78-099." "May 1978." Includes bibliographical references (page 24).