Input-output norms define allowable input proportions for manufacturing double blood bags and require matching imports to exports.

Standard Input-Output Norms set specific input proportions for manufacturing double blood bags with tubing, listing medical-grade PVC, polycarbonate, stainless steel capillary, adhesive or tamper-evident labels, adenine in CPDA solution, and transfer leg closures as permitted inputs. Applicants must ensure imported goods are those actually used or required in the export product, with the permitted proportions determining allowable imports for production of the resultant exportable blood bags.

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