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Accuracy of Total Hydrocarbon Analyzer Measurements Measurements in the SULEV Region
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 03, 2003 by SAE International in United States
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The super-ultra-low-emission-vehicle (SULEV) non-methane organic gas (NMOG) hydrocarbon exhaust standard as legislated by the state of California LEV II regulations is 10 milligrams per mile. This requires that the associative instrumentation must be capable of accurately and precisely determining total hydrocarbons (THC) concentrations on the order of 10 parts per billion-carbon (ppbC) for vehicle tests run under optimum conditions on a bag mini-diluter (BMD) test site.
The flame ionization detector (FID) is the standard instrument used in the measurement of THC. Currently, there are many instrument manufacturers that produce these types of analyzers. This paper studies the limit of detection and accuracy capabilities of one of these instruments, the Beckman 400A FID. In addition, the paper shows evidence that supports that this “state of technology” as described by this instrument, is sufficient to meet the demands of the today's most stringent, vehicle emission standards.
CitationHill, J. and Nagy, D., "Accuracy of Total Hydrocarbon Analyzer Measurements Measurements in the SULEV Region," SAE Technical Paper 2003-01-0388, 2003, https://doi.org/10.4271/2003-01-0388.
- United States Environmental Protection Agency Dec. 6 2001
- Reschke, Glen, D. “Optimization of a Flame Ionization Detector for Determination of Hydrocarbon in Diluted Automotive Exhausts” SAE Technical Report no. 770141