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:
—alumina-chromic oxide;
—alumina-chromic oxide-zirconia-silica;
—zirconia-silica;
—alumina-zirconia-silica;
b) oxide and non-oxide-based products:
—alumina-carbon;
—alumina-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.
BS EN 12475-4:1999 history
2014BS EN ISO 10081-4:2014 Classification of dense shaped refractory products. Special products
1999BS EN 12475-4:1999 Classification of dense shaped refractory products - Special products