Record Display for the EPA National Library Catalog


Main Title An instrument for simultaneous monitoring NOx and SO2 in stationary sources /
Author Tucker, Huel C. ; Chen, Joseph
Other Authors
Author Title of a Work
Cheng, Joseph.
CORP Author Monsanto Research Corp., Dayton, Ohio. Dayton Lab.
Publisher Office of Research and Development, U.S. Environmental Protection Agency ; Available from National Technical Information Service,
Year Published 1973
Report Number 68-02-0554; EPA/650-2-73-027; EPA-68-02-0554
Stock Number PB-231084
OCLC Number 37568068
Subjects Air--Pollution--Measurement
Additional Subjects Nitrogen oxides ; Sulfur dioxide ; Gas detectors ; Design ; Flue gases ; Monitors ; Gas analysis ; Gas sampling ; Development ; Drying apparatus ; Chemiluminescence ; Feasibility ; Circuits ; Performance evaluation
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD  EPA 650-2-73-027 Headquarters Library/Washington,DC 07/01/2014
ELBD ARCHIVE EPA 650-2-73-027 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ELBD RPS EPA 650-2-73-027 repository copy AWBERC Library/Cincinnati,OH 04/16/2018
NTIS  PB-231 084 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation vii, 38 pages : illustrations ; 28 cm.
A Monsanto Model 3409 Chemiluminescent Ambient Air Monitor was converted to a two-channel configuration for simultaneously monitoring NOx and SO2 in stack gases. Channel separation was obtained by means of narrow-band optical filters. The analog sample-hold part of the automatic zero circuit was replaced by a digital memory circuit. A permeation dryer was included to remove water from the sample. The atomic oxygen source was changed to an ozone generator-thermal decomposition configuration. A microwave oxygen generator was also tested. (Modified author abstract)
Contract no. 68-02-0554, program element no. 1A1010. "October 1973." "EPA/650-2-73-027." Project officer: Fred Jaye.