Record Display for the EPA National Library Catalog

RECORD NUMBER: 157 OF 258

OLS Field Name OLS Field Data
Main Title Infrared gas filter correlation instrument for in-situ measurement of gaseous pollutants /
Author Burch, D. E.
Other Authors
Author Title of a Work
Gryvnak, David A.
CORP Author Philco-Ford Corp., Newport Beach, Calif. Aeronutronic Div.;National Environmental Research Center, Research Triangle Park, N.C. Chemistry and Physics Lab.
Publisher U.S. Environmental Protection Agency, National Environmental Research Center, Chemistry and Physics Laboratory,
Year Published 1974
Report Number EPA 650/2-74/094; U-6121; EPA 68-02-0575; EPA-ROAP-26AAP-14
Stock Number PB-239 467
OCLC Number 39136689
Subjects Infrared spectroscopy. ; Air--Pollution--Measurement.
Additional Subjects Gas detectors ; Flue gases ; Spectroscopic analysis ; Infrared spectroscopy ; Hydrogen fluoride ; Hydrogen chloride ; Nitrogen oxide(NO) ; Sulfur dioxide ; Carbon monoxide ; Monochromators ; Air pollution ; Experimental design ; Infrared spectra ; Performance evaluation ; Spectrophotometry ; Absorption spectroscopy ; Correlators ; Optical filters
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=9101LWID.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EJAD  EPA 650/2-74-094 Region 3 Library/Philadelphia, PA 02/11/2000
EJBD ARCHIVE EPA-650-2-74-094 Headquarters Library/Washington,DC 09/26/2013
EJBD  EPA-650-2-74-094 Headquarters Library/Washington,DC 06/27/2014
EKAM  650/2-74/094 Region 4 Library/Atlanta,GA 05/22/1998
EKBD  EPA-650/2-74-094 Research Triangle Park Library/RTP, NC 11/16/2016
NTIS  PB-239 467 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation viii, 54 pages : illustrations ; 28 cm.
Abstract
An infrared analyzer employing gas cell correlation techniques has been designed and constructed to measure the concentrations of carbon monoxide, nitric oxide, sulfur dioxide, hydrogen chloride, and hydrogen fluoride in the effluent of stationary sources. An infrared beam is directed across the stack to a retroreflector and back so that the instantaneous average concentration is measured continuously without disturbing the constituents of the effluent. A small, removable, fixed-position grating monochromator acts as a unique optical filter that passes narrow spectral intervals that are centered at wavelengths where the gas to be detected will absorb. The useful ranges of concentration times path length, in atm cm, over which each gas can be measured are: 0.005 to 0.4 to NO; 0.0013 to 0.15 for CO; 0.001 to 4.0 for SO2; 0.0003 to 0.2 for HCl and 0.0001 to 0.02 for HF. The discrimination against other gases in the effluent is excellent.
Notes
"EPA-650/2-74-094." "October 1974." EPA contract no. 68-02-0575; program element no. 1AA010; ROAP no. 26AAP. EPA project officer: William F. Herget. Includes bibliographical references (pages 53-54).