<h1>Standard input-output norms require imported dye inputs to match declared export manufacturing requirements and proportions.</h1> Standard input-output norms for Direct Red 239 (dye content 68%) list required chemical inputs and proportions under SION A3454 and provide a schedule for determination of allowable input proportions; applicants must ensure imported goods are those used or required in the export product, creating a compliance obligation on importers and manufacturers.