+Recommendations for maintaining ColorChecker charts
The Munsell ColorCecker Charts are manufactured with very light-resistant colorants, however no colorant is absolutely resistant. So, please avoid exposing the chart with bright light. Store it in its black cover, when it is not in use. Also, avoid touching the color patches and protect it against dust, high temperature, humidity or chemical fumes.
Depending on use, it is recommended to replace the ColorChecker charts every two years to ensure correct color identification and consistency to other ColorChecker charts.