12-inch (305 mm) sieve, 1/4 in US STD mesh, stainless steel

12-inch (305 mm) diameter test sieve with 1/4 in mesh conforming to US STD standards. Industrial-grade stainless steel construction with a height of 67 mm. Nominal mesh opening of 6.35 mm, optimized for particle classification in the fine to medium grain size range. High volumetric capacity design suitable for laboratory and quality control applications in the aggregate, mineral, and construction materials industries. Robust structure ensures long-lasting corrosion resistance and dimensional stability during repeated operations. Conforms to ASTM E11 specifications for standard test sieves.