12-inch (305 mm) sieve, 18 US STD mesh, stainless steel

12-inch (305 mm) laboratory test sieve with number 18 mesh conforming to US STD standards. Manufactured from 304/316 stainless steel, providing corrosion resistance and durability in prolonged analytical applications. Technical specifications: 305 mm nominal diameter, 107 mm frame height, 1 mm mesh opening, complies with ASTM E11 particle size classification. Designed for particle size distribution analysis in medium to fine ranges. Robust structure with perimeter reinforcement, compatible with automatic laboratory sieve shakers. Certified for quality control applications in the chemical, pharmaceutical, food, and materials industries. TYLER brand, a guarantee of metrological precision and traceability in testing.