Precautions for the use of AATCC stained grey cards

It is used to evaluate the discoloration and staining in the color fastness test. It is divided into 1-5 grades, and the half grade is incremented. It is packed in the packaging sleeve. This series of gray cards is an international standard type of 5 grades and 9 grades. The grayscale of the gray card adopts the colorimetric data provided by ISO, AATCC and GB, and is made through careful color matching. The colorimetric data of each file is measured by an imported high-precision spectrophotometer, and corrected with the colorimetric transfer benchmark of the Chinese Academy of Metrology to ensure that its grayscale data is consistent with the international. Applicable fields: Since the colorimetric data standards stipulated by the international standard ISO, the American standard AATCC and the Chinese national standard GB are used to calibrate the gray card, the color fastness level evaluated by the gray card is consistent with the international standard. This gray card is suitable for textile color fastness rating in GB, ISO, AATCC, DIN, BS, JIS, EN standards. Precautions for use 1. Keep the gray card clean. 2. The gray card should be checked frequently for marks such as fingers. 3. If it is found that the imprint has interfered with the rating, the grey card must be replaced. 4. Try to avoid mechanical damage caused by touching. 5. If mechanical damage interferes with the rating, it should be replaced. 6. After the gray card is used up, put it into the sleeve.

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