Talk:Formulae For Converting Between Grit and Microns
Numerous tables displaying measures of the size of abrasive particulates of various substances exist on the internet and elsewhere, and generally correspond to certain manufacturer's products. These tables include, but are not strictly limited to, grit and micron measures. The purpose of this Wiki entry is to quantify the relationship between grit and micron particulate measures, and to develop a mathematical relationship between the two which may then be used to convert between the units simply and quickly. Note that the formulae developed in the subsequent text should in no way be deemed definitive: the formulae are only as accurate as the data used to derive them, and it has been noted elsewhere that the available information tends to vary, sometimes significantly, between sources for a variety of reasons.
Measure Definitions and Their Impact on Derivations[edit source]
As a general definition, grit refers to the amount of particulates per unit volume of hone suspension media, and can be, in theory, any of a number of summary measures such as an average, a maximum or a minimum. Micron refers to the size of the abrasive particulates suspended in the hone media and can again be, in theory, an average, a maximum or a minimum. For the purposes of this article it will be assumed that the summary measure has no substantive effect on the derived formulae. However, it should be recognised that different summary measures may account for some of the variation observed between formulae derived using measures obtained from different manufacturers. Furthermore, the exact definition of the measure used (mean, maximum, minimum etc.) will have a technical (although arguably marginal) impact on any statistically-derived formulae and its subsequent use. These impacts will not be considered here.
