Used in testing the durability and safety of textiles, clothing, and wearable materials under conditions that simulate human perspiration. Helps evaluate color fastness, fabric degradation, and metal corrosion from sweat exposure. Commonly applied in quality control for sportswear, jewelry, watches, and medical devices to ensure materials do not release harmful substances or degrade when in contact with sweat. Also used in dermatological studies to assess skin irritation or allergic reactions caused by prolonged contact with materials.