Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Collaborative study of method for the determination of nitrogen oxide emissions from stationary sources (fossil fuel-fired steam generators) /
Author Hamil, Henry F.
Other Authors
Author Title of a Work
Camann, D. E.
CORP Author Southwest Research Inst., San Antonio, Tex.;National Environmental Research Center, Research Triangle Park, N.C. Quality Assurance and Environmental Monitoring Lab.
Publisher Quality Assurance and Environmental Monitoring Laboratory, National Environmental Research Center,
Year Published 1973
Report Number EPA-650/4-74-025; EPA-68-02-0623
Stock Number PB-238 555
OCLC Number 15145812
Subjects Air--Pollution--Measurement. ; Nitrogen oxides. ; Environmental monitoring. ; Steam-boilers--Environmental aspects.
Additional Subjects Nitrogen oxides ; Flue gases ; Gas analysis ; Electric power plants ; Steam electric power generation ; Accuracy ; Calibrating ; Colorimetric analysis ; Quantitative analysis ; Air pollution detection ; Phenol disulfonic acid analysis
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 650-4-74-025 Headquarters Library/Washington,DC 05/20/2013
EJBD  EPA 650-4-74-025 Headquarters Library/Washington,DC 06/09/2015
EKBD  EPA-650/4-74-025 Research Triangle Park Library/RTP, NC 09/05/2017
NTIS  PB-238 555 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation 91 pages in various pagings : illustrations, tables ; 28 cm.
A collaborative study was performed on Method 7 proposed by the EPA for determining the nitrogen oxide emissions from stationary sources. Method 7 specifies the collection of a grab sample in an evacuated flash containing a dilute sulfuric acid-hydrogen peroxide absorbing solution, and the colorimetric measurement of the nitrogen oxides, except nitrous oxide, using the phenoldisulfonic acid procedure. Collaborative tests were conducted at both a coal-fired steam generating power plant and an oil-fired pilot plant by four collaborative teams. Because of chemically significant distortions inherent in the gas cylinder accuracy test, the accuracy of Method 7 could not be adequately demonstrated. The estimated minimum detectable limit of Method 7 is 5.14 x 10 to the -7th power lb./s.c.f. Most of the apparent laboratory bias variation actually is not a true laboratory effect but rather a day effect primarily caused by dubious daily spectrophotometer re-calibration procedures.
"October 1973." Prepared for the U.S. Environmental Protection Agency. Contract Number: 68-02-0623