12-inch (305 mm) sieve, 20 US STD mesh, stainless steel

12-inch (305 mm) laboratory test sieve with US STD #20 classification mesh, 850 μm nominal opening. 304/316 stainless steel frame, 107 mm total height, designed for particle size analysis and quality control applications. Meets ASTM E11 specifications. Provides precise particle separation in medium-fine ranges with high processing capacity. Corrosion and oxidation resistance in demanding industrial environments. SW. TYLER manufacturer certification, guaranteeing dimensional tolerances according to international laboratory sieve standards.