Record Display for the EPA National Library Catalog


Main Title Totally Optical Technique for Monitoring Ambient Non-Methane Hydrocarbons.
Author Manos, D. M. ; Volltrauer, H. N. ; Burch, D. E. ; Chudy, J. S. ; Allen, J. ;
CORP Author AeroChem Research Labs., Inc., Princeton, NJ. ;Ford Aerospace and Communications Corp., Newport Beach, CA. Aeronutronic Div.;Environmental Sciences Research Lab., Research Triangle Park, NC.
Year Published 1984
Report Number AEROCHEM-TP-423; EPA-68-02-3292; EPA-600/3-84-030;
Stock Number PB84-152800
Additional Subjects Optical measurement ; Optical measuring instruments ; Monitors ; Air pollution ; Oxidizers ; Carbon dioxide ; Concentration(Composition) ; Performance evaluation ; Feasibility ; Design criteria ; Gas detectors ; Non-methane hydrocarbons ; Air pollution detection ; Monitoring
Library Call Number Additional Info Location Last
NTIS  PB84-152800 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 79p
A method for measuring ambient levels of nonmethane hydrocarbons (NMHCs) has been developed and an instrument based on that method has been built. The instrument consists of a sample conditioner and an optical CO2-CO monitor. In the sample conditioner ambient air is scrubbed of CO2 and H2O and any NMHCs and CO present are catalytically oxidized to CO2. The CO2-CO monitor measures both the original CO present in the air as well as the CO2 resulting from conversion of NMHCs and the CO. The CO2 channel of the CO2-CO monitor measures the concentration of the CO2 produced, which is directly related to the concentration of NMHC.