2012DIN EN ISO 1927-1:2012-11 Monolithic (unshaped) refractory products - Part 1: Introduction and classification (ISO 1927-1:2012); German version EN ISO 1927-1:2012
2012DIN EN ISO 1927-1:2012 Monolithic (unshaped) refractory products - Part 1: Introduction and classification (ISO 1927-1:2012); German version EN ISO 1927-1:2012
1970DIN EN ISO 1927-1 E:2011-05 Solid (unformed) refractory products Part 1: Introduction and classification (draft)