LITHOPONE

       B301

      B311

The sum of Zinc Sulfide and Barium Sulfate   % m/m ≥

          99

99

Total content of Zinc calculated as Zinc Sulfide % m/m ≥

28

30

Zinc Oxide     % m/m ≤

0.6

0.3

Volatile matter at 105℃       % m/m ≤

0.3

0.3

Water soluble substances     % m/m ≤

0.4

0.3

Residue on sieve(63 µm mesh) % m/m ≤

   0.1

Color (compared with standard sample)

Close to

PH of aqueous suspension

Neutral

Oil absorption g/100g   ≤

14

10

Tint reducing power (compared with standard sample) % ≥

100

105

Hiding power       % ≥

Not lower than 5% standard sample