Item

Standard

B301

B311

Ba+SO4 (as ZnS)%(m/m) ≥

99

99

Zinc (as ZnS) (m/m)%≥

28

30

Zinc Oxide %(m/m) ≤

0.6

0.3

105℃ Volatile%(m/m)≤

0.3

0.3

Water Soluble%(m/m) ≤

0.4

0.3

Screen residues (63um mesh) %(m/m) ≤

0.1

0.1

Oil absorption g/100g ≤

14

10

Color Killing (Compare with standard specimen) %≥

105

105