Standard input-output norms require specified input proportions and verification that imported inputs are used in the export product.

Standard Input-Output Norms set the required input composition and proportions for Coloured High Impact Polystyrene, listing styrene monomer, polybutadiene rubber, mineral oil/liquid paraffin, and titanium dioxide/pigment/colour masterbatch per metric tonne of finished product. An amendment altered the mineral oil nomenclature. Applicants must ensure imported inputs are those actually used or required in the export product and compliance with prescribed input proportions determines import and export eligibility.

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