Classification
Surface of cross-cut area from which flaking has occurred.
(Example for six paralled cuts)
(Example for six paralled cuts)
5B
None
4B
3B
2B
1B
0B
Greater than 65%
5B | The edges of the cuts are completely smooth; none of the squares of the lattice is detached. |
4B | Small flakes of the coating are detached at intersections; less than 5% of the area is affected. |
3B | Small flakes of the coating are detached along the edges and at intersections of cuts. The area affected is 5 to 15% of the lattice. |
2B | The coating has flaked along the edges and on parts of the squares. The area affected is 15 to 35% of the lattice. |
1B | The coating has flaked along the edges of cuts in large ribbons and whole squares have detached. The area affected is 35 to 65% of the lattice. |
0B | Flaking and detachment worse than Grade 1. |
Classification | Surface of cross-cut area from which flaking has occurred. (Example for six paralled cuts) |
5B | None |
4B | |
3B | |
2B | |
1B | |
0B | Greater than 65% |