This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Testing Passenger Compartment Air Filters According to SAE J1669 - The Pitfalls and Sources of Variability
Annotation ability available
Sector:
Language:
English
Abstract
A filter test method is needed to compare cabin air filters from different manufacturers. The performance comparison between different filters requires a test method with repeatable results and low variability. The accurate determination of filter performance can only be achieved by understanding the influence different test parameters and instrumentation can have on the results. A good test standard will minimize these sources of variability, be simple to operate and not deter potential users.
The SAE J1669 proposal allows for different test options that can be a source of variability. This paper highlights some of the sources of variability and common errors possible. The effect of pressure tap and sampling probe location is investigated and discussed. Also examined is the impact background particle measurement and calculation can have on the final results of filter efficiency.
Recommended Content
Topic
Citation
Ptak, T. and Montgomery, D., "Testing Passenger Compartment Air Filters According to SAE J1669 - The Pitfalls and Sources of Variability," SAE Technical Paper 960539, 1996, https://doi.org/10.4271/960539.Also In
References
- SAE J1669 Passenger Compartment Air Filter Test Code Dec. 1994
- Standard Guide for Reducing Test Variability
- Willeke K. Liu B.Y.H. “Single Particle Optical Counter: Principle and Application” Fine Particles Liu B.Y. Academic Press, Inc. 1976
- Liu B.Y.H. et al. “Response of Laser Optical Particle Counter to Transparent and Light Absorbing Particles ASHRAE Transactions 92 1986
- Gebhart J. et. al. “Counting Efficiency And Sizing Characteristics Of Optical Particle Counters” Aerosols Liu B.Y. et. al. Elsevier 1984
- Hinds W.C. Aerosol Technology John Wiley & Sons, Inc. 1982
- Reist P.C. Aerosol Science and Technology McGraw-Hill, Inc. 1993
- Johnston A.M. et al. “Electric Charge Characteristics of Dry Aerosols Produced by Various Mechanical Generators” Proc. of Second International Aerosol Conference West Berlin 1986
- Ptak T.J. “On the Fractional Efficiency of Automotive Interior Air Filters” Proc. of the American Filtration and Separation Society Chicago 1994
- Molter W. et al. “Fast, Automated Testing of Different Air Filter Media” Filtration & Separation January February 1992
- Knollenberg R.G. “Background Noise in Optical Particle Counters; A Need to Establish Statistical Control” Proc. of Second International Aerosol Conference West Berlin 1986
- Gebhart J. Roth C. “Background Noise and Counting Efficiency of Single Optical Particle Counters” Proc. of Second International Aerosol Conference West Berlin 1986
- Standard Test Method for Air Cleaning Performance of a High-Efficiency Particulate Air Filter System
- Kemphorne O. Folks L. Probability Statistics, and Data Analysis The Iowa State University Press 1971