Originally Posted By: Bigdaddyeasy
I guess we just need to get motorking to say it and that will somehow make it factual. He sure has convinced you that greater than means all particals greater than 20 and not at somewhere greater than 20. If that were the case they would state @20.
Motorking has already posted a few times in the past that it's essentially @20 microns. For some kind of "legal reason", Fram chooses to use the words they do: "for particles >20 microns".
Nobody has to convince me that ">20" means everything from 20.001 microns and above. That's what ">20" literally means - everyone knows that (or should).
Originally Posted By: Bigdaddyeasy
Yes 21 is greater than 20 but 99% at greater than 20 doesn't necessarily mean 99% at 21. Just 99% of particles greater than 20. Boulders included.
Yes, it does mean 99% of all particles greater than 20 just as you said.
But think about it ... that means for every 100 particles that are basically 20 microns or larger (since technically 20.001 is >20), that only 1 particle gets through. Even if every 1 per 100 particles that got through were all 20 microns in size, then the filter would still be 99% efficient @20 microns. That's the key to understanding that ">20" and "@20" essentially mean the same thing here - close enough for practical purposes.
I guess we just need to get motorking to say it and that will somehow make it factual. He sure has convinced you that greater than means all particals greater than 20 and not at somewhere greater than 20. If that were the case they would state @20.
Motorking has already posted a few times in the past that it's essentially @20 microns. For some kind of "legal reason", Fram chooses to use the words they do: "for particles >20 microns".
Nobody has to convince me that ">20" means everything from 20.001 microns and above. That's what ">20" literally means - everyone knows that (or should).
Originally Posted By: Bigdaddyeasy
Yes 21 is greater than 20 but 99% at greater than 20 doesn't necessarily mean 99% at 21. Just 99% of particles greater than 20. Boulders included.
Yes, it does mean 99% of all particles greater than 20 just as you said.
But think about it ... that means for every 100 particles that are basically 20 microns or larger (since technically 20.001 is >20), that only 1 particle gets through. Even if every 1 per 100 particles that got through were all 20 microns in size, then the filter would still be 99% efficient @20 microns. That's the key to understanding that ">20" and "@20" essentially mean the same thing here - close enough for practical purposes.