REFRA-Test guarantees controlled, non-destructive brick thickness measurements on the refractory lining in rotary kilns (for example, in the cement, lime, dolomite and magnesite industries) without tedious preparations and with the simplest handling. REFRA-Test enables the state of the lining to be readily determined.

REFRA-Test guarantees high accuracy, which is also the prerequisite for statistical examination for differences in brick thicknesses in refractory linings due to wear.