A sample of coke greater than 20 mm in size and of known size distribution is subjected to mechanical stresses ina rotating drum. The degree of breakdown of the coke is evaluated by a process of sieving and size analysis after 100 drum revolutions (Micum test) and, if desired, after 500 drum revolutions (Irsid test).                          
                          
                          
                            
                                
                                    
                                        Document identifier
                                        ISO 556:1980
                                     
                                    
                                        Title
                                        Coke (greater than 20 mm in size) - Determination of mechanical strength
                                     
                                                                        
                                        ISO Category
                                        TC 27/SC 3: Coke
                                     
                                    
                                    
                                        Publication date
                                        1980-11-01
                                     
                                                                        
                                    
                                        International Relationship
                                        
                                                                                    
                                     
                                    
                                    
                                    
                                    
                                    
                                    
                                    
                                    
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