11-08-2020, 08:47 PM
"What does this mean for the results with the knife? "
My first thought when I saw your knife results was burr. Tiny burr (can't see it with a hand magnifying glass) gets smashed against the edge during edge testing resulting in higher readings. Your "cleaning" procedure probably unbent the burr or wire edge which further supports the idea of burr on the edge. Just a guess of course. But at first blush, that's what comes to mind.
BESS media is certified to produce accurate results using BESS test instruments and can indicate burr in test data. The results of BESS media used in other test equipment is undefined.
Additionally, there are so many variables with edges. DE razor blades are probably your best bet if you want to establish a calibration standard for your (very nice) machine due to the consistency of their edges and edge finishes.
My first thought when I saw your knife results was burr. Tiny burr (can't see it with a hand magnifying glass) gets smashed against the edge during edge testing resulting in higher readings. Your "cleaning" procedure probably unbent the burr or wire edge which further supports the idea of burr on the edge. Just a guess of course. But at first blush, that's what comes to mind.
BESS media is certified to produce accurate results using BESS test instruments and can indicate burr in test data. The results of BESS media used in other test equipment is undefined.
Additionally, there are so many variables with edges. DE razor blades are probably your best bet if you want to establish a calibration standard for your (very nice) machine due to the consistency of their edges and edge finishes.