Dual Manufacturing US3-20B USA Standard Sieve, Mesh #20 (0.850mm) Brass Frame with Brass Mesh, Dia x Depth: 3 x 1-Inch

#20 US Standard All Brass Sieve, 3" x 1". Brass frame with brass cloth is used in No. 18 and coarser; phospor bronze cloth in No. 20 and finer. Each sieve is supplied with an engraved serial number and a test certificate for complete traceability. ASTM E-11, AASHO T-27 and conforming to NBS Standards. Sieve opening: 0.0331". Dual Manufacturing #: US3-20B.

#20 US Standard All Brass Sieve, 3" x 1". Brass frame with brass cloth is used in No. 18 and coarser; phospor bronze cloth in No. 20 and finer. Each sieve is supplied with an engraved serial number and a test certificate for complete traceability. ASTM E-11, AASHO T-27 and conforming to NBS Standards. Sieve opening: 0.0331". Dual Manufacturing #: US3-20B.