Raw technical data Performance Project test conditions [state] method of test data Data unit Basic properties of Excellence qualified apparent density --- --- 0.53 ± 0.03 0.53 ± 0.03 g / ml volatiles other properties --- --- ≤0.30 ≤0.40% average degree of polymerization --- --- 1030 ± 50 1030 ± 50 P impurities in the number of particles --- --- ≤50 ≤100 cells / 100 g sieve residue <0.35mm --- ≤0.1 ≤0.1 % fisheye --- --- ≤5 ≤15 months / 100cm2 plasticizer absorption --- --- ≥17 - g / 100g original whiteness --- --- ≥90 -% Whiteness 160 ℃ , 10min --- ≥76 -% residual --- --- ≤5 - μg / g