Alkali Resistance of Refractory Lining Bricks and
MAKING TEST SPECIMEN For Refractory Bricks (Shaped Refractory Lining) Cut the sample (refractory specimen) from a standard refractory brick. The size must be half of a standard brick, i.e. approximately 114 x 114 x 65 mm, with a hole having a diameter of 35, 40, 45, or 50 mm and a depth of 40 mm. Then dry the sample at 110 degree C.