Sedchang black and white grid cardboard is a black and white grid cardboard used to test the performance of the hiding power of paints and inksDesigned in accordance with the national standard GB1726-88,Can be placed in the oven and the size is 240x150mm.
1. The reflectance value of white is 80±2, and the reflectance value of black is <1;
2. The paper is coated paper with double-sided lamination
3. CompliantGB1726-88National standards.



