... min, %D1508-8.0300% Modulus, vs IRB6 MpaD4120.142.90Carbon Black - Grade N550PropertyASTMMINMAXIodine No. mg/gD151038.048.0Oil Absorption, cc/100gD2414116 ... min, %D1508-12.0300% Modulus, vs IRB6 MpaD4120.303.10Carbon Black - Grade N660PropertyASTMMINMAXIodine No. mg/gD151031.041.0Oil Absorption, cc/100gD241485 ...