| 01 | Surface quality | At least 95% of the bricks have no obvious flaw on the main area | / | Qualified | Qualified |
| 02 | Length Deviation | The allowable deviation of each of the average size relative to the work size:±0.5% | % | -0.03%~+0.11% | Qualified |
| 03 | Average Length Deviation | The allowable deviation of each size of the average relative to the average length of 10 bricks:±0.4% | % | -0.08%~+0.06% | Qualified |
| 04 | Thickness deviation | The allowable deviation of each of the average relative to the thickness of work size:±5% | % | -4.4%~-1.4% | Qualified |
| 05 | Allowable deviation of straightness of side (%) | Maximum allowable deviation:±0.4% | / | -0.06%~+0.18% | Qualified |
| 06 | Allowable deviation of deviation from rectangularity (%) | Maximum allowable deviation:±0.4% | / | -0.33%~+0.30% | Qualified |
| 07 | Allowable deviation of edge curvature (%) | Maximum allowable deviation: ±0.4% | / | -0.34%~-0.02% | Qualified |
| 08 | Allowable deviation of warpage (%) | Maximum allowable: ±0.4% | / | -0.12%~+0.17% | Qualified |
| 09 | Allowable deviation of centre curvature (%) | Maximum allowable: ±0.4% | / | -0.11%~+0.05% | Qualified |
| 10 | Water absorption rate E (%) | 0.5 < E≤0.6;
single value≤0.6 | / | 0.2~0.35; 0.26 | Qualified |
| 11 | Breaking strength | ≥1300 | N | 2300~2450; 2320 | Qualified |