Record Display for the EPA National Library Catalog


Main Title Hydrocarbon measurement discrepancies among various analyzers using flame-ionization detectors /
Author McElroy, Frank F. ; Thompson., Vinson L.
Other Authors
Author Title of a Work
Thompson, Vinson L.
CORP Author Environmental Monitoring and Support Lab., Research Triangle Park, N.C. Environmental Monitoring Branch.
Publisher U.S. Environmental Protection Agency, Office of Research and Development, Environmental Monitoring and Support Laboratory ; Available to the public through the National Technical Information Service,
Year Published 1975
Report Number EPA-600/4-75-010; EPA-ROAP-22ACK; PB247821
Stock Number PB-247 821
OCLC Number 45626175
Subjects Hydrocarbons--Measurement ; Air--Pollution--Measurement
Additional Subjects Gas detectors ; Hydrocarbons ; Air pollution ; Design criteria ; Concentration(Composition) ; Measurements ; Gas ionization ; Monitor ; Gas chromatography ; Comparison ; Performance evaluation ; Calibrating ; Air pollution detection ; Flame ionization detectors ; Air quality criteria
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJED  EPA 600/4-75/010 OCSPP Chemical Library/Washington,DC 02/11/2005
EKBD  EPA-600/4-75-010 Research Triangle Park Library/RTP, NC 07/25/2003
ELBD ARCHIVE EPA 600-4-75-010 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ESAD  EPA 600-4-75-010 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-247 821 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation iii, 23 p. ; 28 cm.
Several experimenters have observed substantially discrepant nonmethane hydrocarbon measurements from various types of hydrocarbon analyzers measuring identical samples of ambient air. To formally investigate this problem, an experimental laboratory study wherein a number of flame-ionization analyzers were observed under controlled conditions while making simultaneous measurements of urban ambient air was conducted. Substantial discrepancies were found to occur among different models of analyzers. The standard deviations of these discrepancies averaged 0.322 part per million, which is extremely large with respect to the ambient air quality standard (guide) for nonmethane hydrocarbons, 0.24 part per million.
"September 1975."