scope:

This part of EN 12475 establishes the classification and designation of dense shaped refractory products of special composition of the following series: a) oxide based products: aluminia-chromic oxide; aluminia-chromic oxide-zirconia-silica; zirconia-silica; aluminia-zirconia silica; b) oxide and non-oxide based products: aluminia-carbon; aluminia-silicon carbide-carbon; c) non-oxide based products: silicon carbide; carbon; d) further special products which are only designated but not classified e.g. non-oxide products such as borides, nitrides or further combinations of the series listed above.