Textiles — Tests for colour fastness — Part J01: Method for the measurement of colour and colour differences

This document establishes a technical framework for assessing color and color difference within the textile industry. It outlines precise methodologies for measuring the chromatic properties of dyed and printed materials using standardized instruments and viewing conditions. The procedures focus on quantifying hue, lightness, and chroma to ensure consistency across production batches and supply chains. By defining specific measurement protocols, the text enables laboratories to evaluate the visual appearance of fabrics under controlled environments. These methods support quality control processes by providing objective data on color uniformity and deviations from reference standards. The approach incorporates established principles of colorimetry to facilitate accurate comparisons between samples. Application of these guidelines helps manufacturers maintain product integrity during dyeing, finishing, and printing operations. The approach ensures that color assessments are reproducible and comparable globally, supporting international trade in textile goods. This technical specification serves as a reference for implementing measurement systems in color evaluation labs and industrial settings without subjective interpretation.