Testing Automotive Interior Air Filters: A Comparison of SAE and DIN Standards

970678

02/24/1997

Event
SAE International Congress and Exposition
Authors Abstract
Content
The quantification of automotive interior air filter performance can involve several laboratory tests including pressure drop, efficiency, dust holding capacity and a variety of physical properties of the filters. Since cabin air filtration is one of the fastest growing global automotive filter markets, the need for a reliable test procedure has become critical.
The SAE J1699 and DIN 71460 test procedures describe the measurement of filter performance characteristics; however, the recommended test stand design, instrumentation and challenge aerosol are not the same. This paper presents the results of an examination of the differences between both standards and their influence on measured filter performance characteristics. The accurate determination of filter performance can be achieved when the sources of test variability are controlled and minimized. The critical components that contribute to variability of both tests are identified and recommendations are made on how to control them. These recommendations should help to develop the standardization of the cabin air filter test methods.
Meta TagsDetails
DOI
https://doi.org/10.4271/970678
Pages
10
Citation
Ptak, T., and Bräunling, V., "Testing Automotive Interior Air Filters: A Comparison of SAE and DIN Standards," SAE Technical Paper 970678, 1997, https://doi.org/10.4271/970678.
Additional Details
Publisher
Published
Feb 24, 1997
Product Code
970678
Content Type
Technical Paper
Language
English