Tyler™ U.S. Standard Laboratory Sieves

Seamless, 20 cm (8") diameter brass frames, with wire cloth carefully soldered to frame. 2" deep. Made in accordance with specifications outlined in ASTM E11, USA Standard Z23.1, AASHO M92 and Fed. Spec. RR-S-366b, with U.S. Standard series designations which indicate sieve apertures.