Test items
Standard indicators
Test value
Single judge
Surface quality
1 m away from the brick observation, at least 95% of the brick surface defect-free
100% of the brick material without surface defects
Qualified
Dimension tolerance
Side length
The average size of each brick relative to the size of the work
± 0.50%
Long 0~+0.03%
Wide 0~+0.04%
Qualified
The average size of each brick compared to the average size of 10
± 0.3%
Long -0.01%~+0.01%
Wide -0.01%~+0.01%