The AATCC TM16-0 aging test method standard provides a systematic method for evaluating the colour fastness of Spinning & weaving raw materials for a variety of Spinning & weaving raw materials and their colorants, finishing agents, etc. The standard includes various exposure methods under carbon arc lamps and Xenon-arc lamps, such as continuous and alternating irradiation, using different Light sources to simulate actual daylight conditions to determine the colour fastness of Spinning & weaving products under light. Test results are determined by comparing the color difference between the exposed and unexposed parts of the sample, or by using AATCC grey cards and color difference instruments for measurement. The standard emphasizes the importance of test conditions, equipment calibrating, and safe operation, and specifies specific steps for equipment calibration using the AATCC blue wool color fastness standard.