Total Zinc Calculated use Zinc Sulfate and Barium Sulfate %
                             99 min

Zinc Sulfate %                      30 min
 
Zinc Oxide %                       0.2max
 
Volatile at 105℃ %                0.3 max

water soluble matter %             0.3 max
 
Sieve Residue,63um               0.05 max

oil absorption,g/100g              8.5 max
 
color, compared with the standard sample      Close to

PH value of aqueous suspension      6.0-8.0

Tint reducing power              Not less than

hiding power   Not less than of 5% the standard sample