Record Display for the EPA National Library Catalog

RECORD NUMBER: 38 OF 43

OLS Field Name OLS Field Data
Main Title Study of Mandatory Engine Maintenance for Reducing Vehicle Exhaust Emissions. Volume VI. A Comparison of Oxides of Nitrogen Measurements Made With Chemiluminescent and Non-Dispersive Radiation Analyzers.
CORP Author TRW Systems Group, Redondo Beach, Calif.
Year Published 1972
Report Number APRAC-CAPE-13-68; 13-68-12;
Stock Number PB-220 731
Additional Subjects ( Air pollution ; Exhaust gases) ; ( Automobile engines ; Exhaust gases) ; ( Automobiles ; Inspection) ; Gas sampling ; Chemiluminescence ; Infrared spectroscopy ; Ultraviolet spectroscopy ; Dessicants ; Tests ; Measurement ; Comparison ; Nitrogen oxides ; Motor vehicle inspection ; Automobile exhaust ; Air pollution abatement
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB-220 731 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 33p
Abstract
Two distinctly different types of instrumentation are widely used to measure automotive exhaust emissions of the oxides of nitrogen (NO and NO2). Until quite recently, virtually all such measurements were made using non-dispersive infrared (NDIR) analyzers for NO and non-dispersive ultraviolet (NDUV) analyzers for NO2. The use of chemiluminescence (CL) analyzers has recently gained wide acceptance for the measurement of both NO and NO2. This report describes an experimental study which was undertaken to describe differences between CL and NDIR/NDUV measurements, as applied to dilute samples of automotive exhaust gas.