Standard Input Output Norms require imported chemical inputs to match those used in export production under FTP. Standard Input Output Norms under FTP set permitted input proportions for manufacturing Zinc Formaldehyde Sulphoxylate, listing Zinc Dust/Ingots, Caustic Soda Flakes, Formaldehyde (37%), and Sulphur Powder per kilogram of finished product, and require applicants to ensure imported goods are those used or required in the export product.