To evaluate the chemical resistance of a refractory material to the aggressive environment (fumes, vapours, fluids, etc.) with which it will be in contact during service life, it is possible to carry out a series of tests either bespoke or regulated by international standards.

Depending on the requirements, specimens of the appropriate shape and size can be subjected to the attack of alkaline vapours, acid or basic slag, carbon monoxide, molten metals, etc., under controlled temperature and atmosphere conditions (T<sub>max</sub> = 1700°C; oxidizing, inert or CO atmosphere).