Mesh and Micron Sizes Chart | ISM

A 100-mesh screen has 100 openings per inch, and so on. As the number indicating the mesh size increases, the size of the openings and thus the size of particles captured by the screen decreases. Higher mesh numbers = smaller …

Determining Screen Mesh Size

Since the size of screen (one square inch) is constant, the higher the mesh number the smaller the screen opening and the smaller the particle that will pass through. Generally US Mesh is …

Understanding Mesh Sizes

The designation -325 mesh is simply saying the powder passed through a 325 mesh screen. If you needed a powder that was closer to size you would need to specify two mesh sizes.

325 mesh

A 325 mesh screen only permits particles smaller than the diameter of a human hair to pass. Using one you can remove all visibly detectable impurities from a clay slurry.