This SAE Standard is intended for all sizes of fuel filters, so a variety of test stands may be required depending upon flow rate. The low contamination level, downstream clean-up filter, and short duration of the test, ensures that the particle retention ability of the filter is measured in a single pass as no appreciable loading or regression will occur.
As part of the 5 year review process parts of this document pertaining to bottle counting were removed. The rationale behind these revisions is to bring the document up to current technology that is used to characterize particle removing efficiencies in fuel filters. Online particle counting systems have proven to provide more reliable data than previously used off-line bottle counting systems. Other revisions to the document include corrected counts for test system validation and improved validation procedures for the injection and test systems. A more detailed test report sheet has also been added.