Record Display for the EPA National Library Catalog


Main Title Methanol Measurement in Auto Exhaust Using a Gas-Filter Correlation Spectrometer.
Author Gabele, P. A. ; Cha, S. ;
CORP Author Environmental Sciences Research Lab., Research Triangle Park, NC. ;Northrop Services, Inc., Research Triangle Park, NC.
Year Published 1985
Report Number EPA/600/D-85/293;
Stock Number PB86-137619
Additional Subjects Gas detectors ; Methyl alcohol ; Exhaust emissions ; Spectrochemical analysis ; Infrared spectroscopy ; Formaldehyde ; Performance evaluation ; Air filters ; Air pollution ; Calibrating ; Carbon monoxide ; Nitrogen oxides ; Hydrocarbons ; Concentration(Composition) ; Design criteria ; Substitutes ; Air pollution detection ; Alcohol fuels
Library Call Number Additional Info Location Last
NTIS  PB86-137619 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 11p
Spectroscopic methods offer an alternative to wet chemical methods for analysis of methanol emissions from automobiles. The gas filter correlation infrared optical analysis approach appears very promising. The report describes the gas correlation optical system constructed to analyze methanol. The operating characteristics of the system and test data of measurements made on exhaust from a methanol-fueled vehicle are presented. The methanol system has a detection limit of about 0.5 ppm and the system produces a highly predictable output with a calibration curve having a data fit with a multiple correlation coefficient of 0.999. The system also displays excellent rejection to interferences normally present in automobile exhaust. (Copyright (c) 1985 Society of Automotive Engineers, Inc.)