<h1>Input Output norms require imported grinding media components to match specified composition and be used in the export product.</h1> Standard Input Output norms specify a grinding media formulation of 83% zirconium oxide and 17% cerium oxide and list per metric ton input quantities for zirconium dioxide, cerium oxide, ammonium alginate/acrylic emulsion binders, and nitride bonded silicon carbide refractory trays. A schedule requires determination of allowable input proportions and obliges applicants to ensure imported goods are those used or required in the exported product.