Standard Input Output Norms define permitted input proportions for carbonised polyester textiles to ensure imports match export usage.

Standard Input Output Norms set quantified input allowances for export of carbonised polyester textiles and related made ups, specifying polyester and viscose staple fibre ratios, permitted dyes and auxiliaries, and input quantities (weight or percentage) tied to polyester or viscose content of the export product. Applicants must ensure imported inputs match those listed and are actually used or required in manufacture of the exported goods.

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