ASC Scientific has everything you need to conduct your sieve analysis. We sell laboratory sieves, as well as sieve pans and lids from popular manufacturer W.S. Tyler. We regularly carry W.S. Tyler sieves in 3” and 8” diameter, both of which are available with a full range U.S. Standard opening sizes. Every W.S. Tyler sieve sold by ASC Scientific comes with a certificate of compliance stating their adherence to the following standards: ATSM E-11, ISO 3310-1, and BS 410.