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OLS Field Name OLS Field Data
Main Title Investigation of particulate matter monitoring using contact electrification /
Author John, Walter,
CORP Author California State Coll., Stanislaus, Turlock.;National Environmental Research Center, Research Triangle Park, N.C. Chemistry and Physics Lab.
Publisher The Office ; For sale through the National Technical Information Service,
Year Published 1975
Report Number EPA/650-2-75-043; EPA-802726; EPA-ROAP-26AAM
Stock Number PB-245 055
OCLC Number 04599157
Subjects Aerosols. ; Electrostatics. ; Dust--Electric properties. ; Dust--Measurement.
Additional Subjects Monitors ; Particles ; Air pollution detection ; Aerosols ; Electrostatic charge ; Gas sampling ; Surfaces ; Contact electricity
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 650-2-75-043 Headquarters Library/Washington,DC 09/09/2013
EJBD  EPA 650-2-75-043 Headquarters Library/Washington,DC 10/02/2014
EKAM  TD172.E46 1975 no.43 Region 4 Library/Atlanta,GA 01/17/1997
ELBD RPS EPA 650-2-74-043 repository copy AWBERC Library/Cincinnati,OH 07/31/2017
NTIS  PB-245 055 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation vii, 46 pages : illustrations ; 27 cm.
Abstract The theory of the charging of aerosol particles by contact electricity is reviewed, as well as the development of monitors for particulate matter based on this principle. Data on the performance of these monitors is scarce and sometimes contradictory. In the present work, laboratory tests were carried out with a variety of test dusts. The results show that the dynamic response of the contact electricity monitor tracks well with that of an optical detector. The total charge correlates well with the gravimetric mass. Humidity or precharge on the particles did not influence the detector. Some evidence was obtained showing that particle size does not have an important effect on the response, although there is a cutoff for very small particles. Results for the sensitivity of the instrument can be grouped according to electrical resistivity of the material. It is found that the condition of the surface of the Inconel probe has a major effect on the sensitivity. Additional work is necessary on this aspect of the detector. The Theory of Cheng and Soo for the charging of metal particles is discussed.
Notes "EPA/650-2-75-043." "February 1975." Grant no. R-802726-01. Research sponsored by the California State College, Stanislaus, College Foundation. Includes bibliographical references (pages 38-40).
Place Published Washington Springfield, Va.
Corporate Au Added Ent California State College, Stanislaus. College Foundation.; United States. Environmental Protection Agency. Office of Research and Development.
Title Ser Add Ent Research reporting series. Environmental protection technology ; EPA-650/2-75-043.
PUB Date Free Form 1975
Series Title Traced Environmental protection technology series ; EPA-650/2-75-043
Series Title Untraced Environmental protection technology series ; EPA-650/2-75-043
NTIS Prices PC A04/MF A01
BIB Level m
Medium unmediated
Content text
Carrier volume
Cataloging Source OCLC/T
OCLC Time Stamp 20170712065807
Language eng
SUDOCS Number EP 1.23/2:650/2-75-043
Origin OCLC
OCLC Rec Leader 02302cam 2200541Ii 45010