90.93 Standard confirmed Nov 6, 2023
CEN
CEN/TC 187 Refractory products and materials
European Norm
71.040.40 Chemical analysis
This standard describes the methods for the analysis of all refractory products containing nitride and oxynitride bonded silicon carbide, irrespective of the silicon carbide level. It includes details of sample preparation, general principles of chemical analysis and detailed methods for the determination of carbon, silicon carbide, free aluminium, free silicon, total nitrogen and oxygen.
PUBLISHED
EN 12698-1:2007
90.93
Standard confirmed
Nov 6, 2023