Technical requirements

Test results

ZnO %

42-44

43.64

B2O3%

52-56

54.80

Appearance  water% 

≤0. 0 5

0. 024

Sieve Residue

≤ 0.0005

0.0003

Crystal water %

1.5

0.34

Pb ppm

≤ 10

6.3

As ppm

≤ 2

ND

Cd ppm

≤ 5

1.8

Cr ppm

≤ 5

1

P article size

1-5 um

2. 6

Whiteness%

≥ 97

98.5

Expiry date

Apr , 1  2013