ISO 21068-3:2008 specifies methods for the determination of total nitrogen and nitrogen calculated as silicon nitride, total oxygen, and free metallic and oxidic components in silicon carbide raw materials and refractory products. It applies only to silicon carbide materials that are not bonded with nitrogen. Nitride-bonded silicon carbide refractories are covered in EN 12698-1.                          
                          
                          
                            
                                
                                    
                                        Document identifier
                                        ISO 21068-3:2008
                                     
                                    
                                        Title
                                        Chemical analysis of silicon-carbide-containing raw materials and refractory products - Part 3: Determination of nitrogen, oxygen and metallic and oxidic constituents
                                     
                                                                        
                                        ISO Category
                                        TC 33: Refractories
                                     
                                    
                                    
                                        Publication date
                                        2008-08-01
                                     
                                                                        
                                    
                                        International Relationship
                                        
                                            BS EN ISO 21068-3:2008 * BS EN ISO 21068-3:2008                                        
                                     
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                        | Price | 185 vnd |