<h1>Input-output norms for silver contacts require metal-content multipliers and verification that imports match manufacturing use.</h1> Standard Input-Output Norms prescribe input proportions for Silver Contacts and related products: unwrought silver (99.9% purity) and any alloying metals must be accounted at a factor of 1.03 kg per kg of export product. Applicants must ensure imported inputs correspond to goods actually used or required in the export product; the schedules determine allowable input proportions and are subject to amendment by public notice.