Grade  | 
                    BET or   F.s.s.s  | 
                    Oxygène%   max  | 
                   
                  
                    GW02   | 
                    >5.0㎡/g   | 
                    0.80   | 
                   
                  
                    GW04   | 
                    4.0-5.0㎡/g   | 
                    0.60%   | 
                   
                  
                    GW05   | 
                    0.5-0.6μm   | 
                    0.55%   | 
                   
                  
                    GW06   | 
                    0.6-0.7μm   | 
                    0.40   | 
                   
                  
                    GW07   | 
                    0.7-0.8μm   | 
                    0.35   | 
                   
                  
                    GW08   | 
                    0.8-0.9μm   | 
                    0.25   | 
                   
                
               
               
              
  | 
          
          
             | 
            Oligo-éléments pour la poudre ci-dessous 9.0u | 
          
          
            
                
                  
                    | élément | 
                    Max   | 
                    Typique | 
                    élément | 
                    Max | 
                    Typique | 
                    élément | 
                    Max | 
                    Typique | 
                   
                  
                    | Al | 
                    0.0010 | 
                    0.0005 | 
                    Fe | 
                    0.0050 | 
                    0.0010 | 
                    Pb | 
                    0.0003 | 
                    0.0001 | 
                   
                  
                    | As | 
                    0.0010 | 
                    0.0005 | 
                    K | 
                    0.0015 | 
                    0.0010 | 
                    S | 
                    0.0010 | 
                    0.0005 | 
                   
                  
                    | Bi | 
                    0.0003 | 
                    0.0001 | 
                    Mg | 
                    0.0010 | 
                    0.0005 | 
                    Sb | 
                    0.0005 | 
                    0.0003 | 
                   
                  
                    | C | 
                    0.0030 | 
                    0.0010 | 
                    Mg | 
                    0.0010 | 
                    0.0005 | 
                    Si | 
                    0.0015 | 
                    0.0010 | 
                   
                  
                    | Ca | 
                    0.0015 | 
                    0.0006 | 
                    Mn | 
                    0.0010 | 
                    0.0005 | 
                    Sn | 
                    0.0003 | 
                    0.0001 | 
                   
                  
                    | Cd | 
                    0.0005 | 
                    0.0001 | 
                    Mo | 
                    0.0030 | 
                    0.0016 | 
                    Ti | 
                    0.0010 | 
                    0.0005 | 
                   
                  
                    | Co | 
                    0.0010 | 
                    0.0005 | 
                    Na | 
                    0.0015 | 
                    0.0007 | 
                    V | 
                    0.0010 | 
                    0.0005 | 
                   
                  
                    | Cr | 
                    0.0020 | 
                    0.0010 | 
                    Ni | 
                    0.0020 | 
                    0.0010 | 
                    ? | 
                    ? | 
                    ? | 
                   
                  
                    | Cu | 
                    0.0003 | 
                    0.0001 | 
                    P | 
                    0.0010 | 
                    0.0005 | 
                    ? | 
                    ? | 
                   
                
                |