Record Display for the EPA National Library Catalog

RECORD NUMBER: 9 OF 43

OLS Field Name OLS Field Data
Main Title Development of a monitor for HCN in mobile source emissions /
Author Burch, D. E. ; Burch, Darrell Eugene ; Davila, Pamela S. Marrs ; Gates, Francis J. ; Pembrook, John D.
CORP Author Ford Aerospace and Communications Corp., Newport Beach, CA. Aeronutronic Div.;Environmental Sciences Research Lab., Research Triangle Park, NC.
Publisher U.S. Environmental Protection Agency, Office of Research and Development, Environmental Sciences Research Laboratory,
Year Published 1979
Report Number EPA/600/2-79/113
Stock Number PB80-100514
OCLC Number 42394785
Subjects Hydrocyanic acid gas--Measurement. ; Air--Pollution--Measurement.
Additional Subjects Air pollution ; Hydrogen cyanide ; Exhaust emissions ; Monitors ; Motor vehicles ; Laboratory equipment ; Design ; Performance evaluation ; Samples ; Gas analysis ; Chemical analysis ; Concentration(Composition) ; Air pollution detection ; Catalytic reactors(Exhaust systems)
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=91018CBU.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EHAM  EPA/600/2-79/113 Region 1 Library/Boston,MA 05/25/2016
EJAD  EPA 600/2-79-113 Region 3 Library/Philadelphia, PA 06/16/2000
EJBD ARCHIVE EPA 600-2-79-113 Headquarters Library/Washington,DC 09/07/2011
EJBD  EPA 600-2-79-113 c.1 Headquarters Library/Washington,DC 01/16/2014
EKAM  EPA-600/2-79/113 Region 4 Library/Atlanta,GA 09/24/1999
EKBD  EPA-600/2-79-113 Research Triangle Park Library/RTP, NC 07/04/2003
ESAD  EPA 600-2-79-113 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB80-100514 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation vii, 35 pages : graphs, figures ; 28 cm.
Abstract
Three real-time monitors for measurement of HCN concentrations in mobile source emissions have been designed, built, tested, and delivered to the Environmental Protection Agency (EPA). The important design parameters for these identical instruments were determined during the first phase of the program of performing tests with a versatile gas-filter correlation spectrometer built previously in our laboratory for EPA. The instruments employ a gas-filter cell to provide sensitivity to HCN while discriminating against other infrared active gases such as H2O, CO2, NH3 and many hydrocarbons that occur in mobile source emissions. These gases absorb near 3 micrometers, the approximate center of the narrow spectral band employed by the instrument. Samples are contained in a temperature-controlled cell that uses a 20-pass optical system with an optical path length of 15.5 m. An H2O monitor built as an integral part of the instrument measures the H2O concentration, making it possible to account for a small amount of interference by this gas in the sample. The rms noise-equivalent-concentration of HCN is less than 0.02 ppm. The combined error after accounting for H2O interference for most dilute samples is less than 0.1 ppm HCN.
Notes
"EPA-600/2-79-113." EPA contract no. 68-02-2716; EPA project officer: Fred Stump. Incorrectly on t.p. as: "Development of a monitor for HCN in mobile source emission." Includes bibliographical references.