Sift through sampled materials at various stages and aperture sizes with the large selection of sieves. Suitable for large and coarse materials or fine and grainy, the durable sieves come in different mesh opening sizes to suit specific needs. There are stainless steel mesh with steel cloth to filter fine particle size. Each sieve bears a traceable serial number, frame diameter, and comes with a certificate of compliance to current international standards. Some models are compatible for use with sonic sifters, but all can be used manually in the laboratory.