Properties               N660

Adsorption No     36±6  (g/kg) 
DBP Adsorption No  90±7  (10^-5m³/kg)
24M4 DBP Adsorption No   69~81 (10^-5m³/kg)
CTAB Surface Area     30~42 (10³m²/kg)
Nitrogen Surface Area    29~41 (10³m²/kg)
Tint Strength       --(%)
Heat Loss   1.5 (%)
Ash Content 0.5 %
45Um Sieve Residue0.1 %
150Um Sieve Residue0.02 %
500Um Sieve Residue 0.001%

Impurity  none
Tensile Strength     -3.5(Mpa≥)
Ultimate Elogation    +10(%≥)
300% Modulus     -2.5±1.2(Mpa)