<h1>Standard Input-Output Norms require verification that imported inputs match prescribed compositions and are used in export production.</h1> Standard Input-Output Norms prescribe composition for P.P. tapes with U.V. stabilisation: P.P. granules 1.029 kg and U.V. stabiliser 0.021 kg per kg of finished tape. The schedule requires determination of allowable input proportions and obliges applicants to verify that imported goods are those actually used or required in the export product.