These are economical sieves built to exacting yet practical standards and performing as long and usefully as the U.S. Standards Type. In the U.S. Standards Series the mesh is specified as to openings per lineal inch and wire size, however, only the wire size criteria is used for these sieves. The sieves have seamless brass frame and flange. They measure 5 inches diameter inside by 1-1/2 inches deep. The sieve number is stamped on the side of each frame.
