PDF MESH and MICRON SIZES Industrial Spec
coffee (ground) 5 to 400 concrete dust 3 to 100 copier toner to 15 corn starch to dust (atmospheric) to 40 dust () to 100 dust mites 100 to 300 eye of a needle 1230 flour (wheat milled) 25 to 212 gelatin powder 5 to 90 giardia cysts 8 to 14 ginger (ground) 25 to 40 human hair 70 (40 to 120)