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What is the difference between the equivalent pore diameters of geotextiles O90 and O95?

It should be that the selected experimental calculation specifications are inconsistent, mainly to calculate the percentage of standard sand screening rate, o95 is 5% screening rate and o90 is 10% screening rate, so as to determine the remaining standard sand in the gap of geotextile, and calculate the pore size of geotextile with the diameter of standard sand. Can only say that it is more accurate?