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% |