Ok thanks but I prefer to know how much it is per sheet, or even better, how much it is per square inch. I need to dig out my spreadsheet and figure this out. But i went ahead and ordered it anyway and will have to suffice.
I thijnk someone should also provide the friction coefficient, so it can be calculated how much "residue" is removed per "standardized sheet," with a multivariate plot for "consistency" of the residue. that will ALMOST be enough info then to risk a purchase