Updated Efficiency For Stratapore Filters ?
- Thread starter OLEJOE
- Start date
Interesting.
Could it be that they recently upgraded test lab equipment, giving them better resolution, and the ability to more accurately report filtration? Or have the made improvements to the Stratapore filtration media? One would think that if it was the later, they would make a deal about advertising the improvement in filtration efficiency.
Could it be that they recently upgraded test lab equipment, giving them better resolution, and the ability to more accurately report filtration? Or have the made improvements to the Stratapore filtration media? One would think that if it was the later, they would make a deal about advertising the improvement in filtration efficiency.
Yeah Im wondering if that’s what the (c) is on there for. Corrected.
The image above is for the LF16035 but I have seen the same efficiency rating change on some of the other Stratapore filters.
Maybe @NashNative will have more insight since he works for Fleetguard.
The (c) means the particle counting equipment was calibrated to ISO 11171 specs, which is a more accurate calibration. Was there a (c) in their old spec data?
Just coincidental. It's what micron size fell on the efficiency vs particle size curve at 100% efficiency.
Showing the value out one decimal, where it was reported in a whole number before, supports the idea that new test equipment can provide increased resolution.
When the test is done, an efficiency vs particle size curve it generated from the measurements. When the curve is generated, the point where the efficiency is 100% happens to be at 24.6 microns. Don't think the particle counter can measure particles down to a 1/10 of a micron.
Here's an example. The graph is produced from the particle counter equipment and plotted. If the graph is extrapolated to the 100% efficiency line, then in this case the efficiency at 100% is around 51.3 microns. Per the ISO test spec, they should be giving the efficiency at 98.7% (defined as "absolute efficiency"), but FleetGuard has extrapolated the efficiency curve out to 100%.
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I can’t remember about the (c) being present. I just thought it was odd having tenths listed. Thanks for the clarification about this.
Doesn't get much better than that, too bad all filters are not Stratapores.
So at 98.7% it should be an even lower micron rating ? 24.6 @ 100% seems pretty good for a diesel engine filter.
Noticed it the other day when looking at a cross reference filter, didn’t think much of it till you mentioned it now. Fleetguard makes really good filters, only one that really beats them in efficiency is the Donaldson blue or Syntec media type filters.
Yes, it would be a slightly lower micron size at 98.7% efficiency, probably close to 20 microns.
Im envious of the filters Ive seen that you have cut open and the color of the used oil. Mine look like asphalt.
