Test sieves for reliable sieve analysis
WEBThe tolerance y for a sieve with the nominal mesh width 63 μm is ± μm. This means that the mean value of the mesh sizes must lie between μm and μm. A look at the graph that helps to understand why the knowledge of the real mesh width is so important for sieve analysis: if the mesh size is 63 μm, 40% of the sample are smaller ...