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This AATCC test method provides comprehensive guidelines for the qualitative identification of various chemical finishes on textile fibers, yarns, and fabrics. The methodology is flexible, outlining several analytical approaches rather than a single rigid procedure. The primary technique involves sequential solvent extractions to isolate finish components, which are then identified using advanced instrumental methods. These include infrared spectroscopy (IR) for structural information, as well as various forms of chromatography (GC, HPLC, TLC) for separating and identifying specific compounds like softeners, resins, and formaldehyde. The document also covers direct analysis on fabric through techniques like X-ray fluorescence and simple chemical spot tests for rapid detection. A significant portion is dedicated to laboratory safety precautions, emphasizing proper handling of chemicals and solvents. The method serves as a crucial tool for quality control, research, and troubleshooting in the textile finishing industry.