The standard mesh specifications should include the mesh size and mesh number and they should correspond to each other. For example, 100 meshes refers to 100 meshes in each inch. Mesh size: 4.75mm Standard mesh number: 1 Mesh size: 4.00mm Standard mesh number:2 Mesh size: 3.35mm Standard mesh number: 3 Mesh size: 2.80mm Standard mesh number: 4 Mesh size: 2.36mm Standard mesh number: 5 Mesh size: 2.00mm Standard mesh number: 6 Mesh size: 1.70mm Standard mesh number:7 Mesh size: 1.40mm Standard mesh number: 8 Mesh size: 1.18mm Standard mesh number: 16 Mesh size: 1.00mm Standard mesh number:18 mesh size: 0.850mm Standard mesh number: 20 Mesh size: 0.710mm Standard mesh number: 25 Mesh size: 0.600mm Standard mesh number: 30 Mesh size: 0.500mm Standard mesh number: 35 Mesh size: 0.425mm Standard mesh number: 40 Mesh size: 0.355mm Standard mesh number: 45 Mesh size: 0.300mm Standard mesh number: 50 Mesh size: 0.250mm Standard mesh number: 60 Mesh size: 0.212mm Standard mesh number: 70 Mesh size: 0.180mm Standard mesh number: 80 Mesh size: 0.150mm Standard mesh number: 100 Mesh size: 0.125mm Standard mesh number: 120 Mesh size: 0.106mm Standard mesh number: 140 Mesh size: 0.090mm Standard mesh number: 170 Mesh size: 0.0750mm Standard mesh number: 200 Mesh size: 0.0630mm Standard mesh number: 230 Mesh size: 0.0530mm Standard mesh number: 270 Mesh size: 0.0450mm Standard mesh number: 325 Mesh size: 0.0374mm Standard mesh number: 400 A negative sign added before the mesh number refers that the mesh can leak out . For example, -100 meshes +200 meshes refers that these particles can be leaked out in 100 mesh size to 200 mesh size.
