Test method for colour fastness to perborate

This document establishes a systematic procedure for evaluating color fastness to perborate. It defines the necessary apparatus, reagents, and test conditions required to assess the resistance of dyed textiles to fading when exposed to perborate agents. The methodology outlines sample preparation, the specific exposure protocol involving the test solution, and the subsequent washing and drying steps. Performance is determined by comparing the change in color intensity before and after treatment using standardized visual comparison techniques or instrumental colorimetry. Detailed instructions are provided to ensure consistency across different laboratories and testing environments. The text specifies the grading criteria for assessing color changes and the acceptance thresholds for various textile applications. Adherence to this procedure enables manufacturers and quality control personnel to verify product durability under defined chemical conditions, ensuring uniformity in testing outcomes without reference to specific national guidelines or publication dates.