Advantech Brass Test Sieves with Stainless Steel Wire Cloth Mesh, 12" Diameter, #325 Mesh, Full Height #325 mesh size Brass frame, stainless steel wire cloth Full height (2 inch depth to wire cloth) Serial number is etched on each sieve and contained in a bar-coded label, tracing vital information Comes with Certificate of Compliance applicable to ASTM E 11 specifications