Dual US3-18B ASTM Test Sieves, 3" x 1" All Brass Frame with Brass Mesh, U.S. Standard No. 8. These 3 inch diameter with standard 1 inch height brass frame and brass cloth U.S. Standard sieves conform to all ASTM E-11, AASHTO T-27 and NBS specifications. Optional half height depths are available. Each sieve is supplied with an engraved serial number and a test certificate...
Dual US3-18B ASTM Test Sieves, 3" x 1" All Brass Frame with Brass Mesh, U.S. Standard No. 8....