This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
“Evaluation of the Drift of vehicle Inspection/Maintenance Emission Analyzers in use- A California Case Study”
Annotation ability available
Sector:
Language:
English
Abstract
Quality assurance (QA) in motor vehicle emissions inspection/maintenance (I/M) programs is a continuing concern, especially in decentralized programs with hundreds or even thousands of licensed stations. The emissions analyzers used in such stations are an important focus of governmental QA efforts because of the central role of analyzers in determining which vehicles need to be repaired. Therefore, the In-use performance of I/M emission analyzers has a large impact on the quality of 1/M programs as a whole. This paper reports on the results of an investigation in California designed to determine in-use performance of emission analyzers in the field. The investigation was designed to evaluate both drift rates and the ability of analyzer systems with automatic gas calibration capability to correct analyzer responses outside of accepted tolerances.
Authors
Citation
Carhart, B., Moore, T., Peters, T., and Sherwood, L., "“Evaluation of the Drift of vehicle Inspection/Maintenance Emission Analyzers in use- A California Case Study”," SAE Technical Paper 891119, 1989, https://doi.org/10.4271/891119.Also In
References
- Guidance on Quality Control for Inspection/Maintenance Programs Office of Mobile Sources, U.S. Environmental Protection Agency Ann Arbor, MI 1982
- Cabaniss, John M. “Quality Assurance in Inspection/Maintenance Programs,” Office of Mobile Sources, U.S. Environmental Protection Agency Ann Arbor, MI 1984
- Carhart, Bruce S. “Real World Approaches to Inspection/Maintenance Quality Assurance: Field Auditing Issues,” presented to the 78th Annual Meeting of the Air Pollution Control Association Detroit. HI 1985
- Presentation materials for the I/M Quality Assurance Conference Kansas City, MO Office of Mobile Sources, U.S. Environmental Protection Agency Ann Arbor, MI 1985
- Tierney, Eugene J. “A Discussion of Possible Causes of low Failure Rates in Decentralized I/M Programs,” Office of Mobile Sources, U.S. Environmental Protection Agency Ann Arbor, MI 1987
- User's Guide to MOBILE3 (Mobile Source Emissions Model Office of Mobile Sources, U.S. Environmental Protection Agency Ann Arbor, MI 1984
- California Bureau of Automotive Repair (BAR) “Test Analyzer System Specifications,” Department of Consumer Affairs Sacramento, CA 1983
- California Bureau of Automotive Repair (BAR) “BAR-80 Exhaust Gas Analyzer Specifications,” Department of Consumer Affairs Sacramento, CA 1979
- California Bureau of Automotive Repair (BAR) “Draft BAR 90 Analyzer Specification,” February 26 1989
- Pienta, Walter J. et al “Quality Assurance in Decentralized I/M Networks: Analyzer Measurement Error and Field Performance,” Society of Automotive Engineers Warrendale, PA 1985