ITEMS

INDEX

 Battery Grade

First Grade

Second Grade

ZnCl2 %   ≥

98.0

98.0

96.0

ZnO  %

1.8-2.2

2.2

2.2

SO4  %    ≤

0.01

0.01

0.05

Ba       %    ≤

0.1

0.1

0.2

Fe        %    ≤

0.0005

0.001

0.002

Pb        %    ≤

0.0005

0.001

0.002

 Corrosion test of Zinc

Qualified