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Critical Study of the United States Exhaust Emission Certification Test-Error and Probability Analysis
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Abstract
The United States regulations concerning the Automobile exhaust emissions stipulate the limits of the individual pollutants that must not be exceeded, but make no allowance for measuring uncertainties when evaluating the test results; nor are the final results subjected to any form of statistical analysis.
We have performed a critical study of the Exhaust Emission Certification Test based on statistical methods. With the results of this investigation, it is possible to calculate the real risk for passing the Certification Test and to determine the engineering goals (or safety margins) which are required to pass Certification. In addition, systematic errors should be taken into account.
Meeting these safety margins represents an calculable additional aggravation of the already stringent standards.
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Citation
Fock, M., Lies, K., and Pazsitka, L., "Critical Study of the United States Exhaust Emission Certification Test-Error and Probability Analysis," SAE Technical Paper 750678, 1975, https://doi.org/10.4271/750678.Also In
References
- Klingenberg H. Fock M. Lies K.H. Pazsitka L. “A Critical Study of the United States Exhaust Emission Certification Test-Error Analysis for the Test Procedure.” 67th Annual Meeting of the Air Pollution Control Association Denver, Colorado June 9-13 1974
- Fock M. Lies K.H. Pazsitka L. “A Critical Study of the United States Exhaust Emission Certification Test-Part II.” Research Report No. MT-Fo 5/74-2
- Kohlrausch F. B.G. Teuber-Verlag Stuttgart 1968