For the evaluation of the color fastness test of discoloration, staining, 1-5 level, semi increase, installed in the packing sleeve.
This series of gray card is 5 level 9 file types to the international general. Gray gray card uses ISO, AATCC, GB provide the chromaticity data, made by carefully matching. Color of each file data use import high accuracy spectrophotometer, and color China Institute of metrology of learning transfer standard calibrated, ensure the gray data consistent with international.
Field of application
For the chroma adopted the international standards ISO, AATCC American standard and China national standard GB defined data standard calibration of the gray card, color fastness rating so use the gray card evaluation, consistent with international. The gray card is suitable for GB, ISO, AATCC, DIN, BS, JIS, EN standards in textile color fastness rating.
The use of attention to matters
1. keep the gray card clean.
2. Should always check whether there are finger mark gray card.
3. If it is found that the mark has the interference to the rating, gray card must be replace.
4. Mechanical damage to avoid touching and produce.
5. If the mechanical damage the interference to the rating, should replace.
6. Gray card after use, in the sleeve.
HASHIMA X-RAY Inspecti...