What are the main inspections during the acceptance of refractory bricks?

After the refractory bricks enter the factory, the acceptance and selection work should be carried out, and the unqualified (such as cracks and corners) shall be rejected. During acceptance, it is mainly to check whether the chemical composition, specifications and shape of the refractory brick meet the requirements. It would be better if it can be tested for refractoriness, rapid cold and rapid heat resistance, and compressive strength. The size error of refractory bricks is required to be no more than 3 mm. If the error is too large, it will bring certain difficulties to bricklaying, and it is difficult to guarantee the quality of inlaying.