Name Parameter Carbon black N220 Carbon black N330 Carbon black N550 Carbon black N660 Loding Absorption Number (g/Kg) 114-128 77-87 39-47 32-40 Absorption Value of DBP (10-5m3/Kg) 109-119 97-107 116-126 85-95 Absorption Value of compressing sample DBP (10-5m3/Kg) 95-105 83-93 83-93 71-79 Adsorptive Specific Surface Area of CATB ( 103m2/Kg) 106-116 77-87 38-46 32-40 Adsorptive Specific Surface Area of Nitrogen (103m2/Kg) 114-124 78-88 38-46 30-40 Tinting Strength % 110-120 98-108 Heating Loss 2.5%Max 2.5%Max 1.5%Max 1.5%Max Ash Content 0.5%Max 0.5%Max 0.5%Max 0.5%Max Tensile Strength -0.5MPa Min -0.5MPa Min -3.5MPa Min -3.0MPa Min 300% Extending Stress -1.5±1.0 MPa -1.0±1.0 MPa -1.0±1.0 MPa -2.5±1.0 MPa 45μm Sieve Residue 0.10%Max 0.10%Max 0.10%Max 0.10%Max