Technical requirements

Test results

ZnO %

37.5+/-0.5

37.58

B2O3%

47.5+/-1

47.46

Appearance  water% 

≤0.5

0.28

Sieve Residue

≤ 0.0005

0.0003

Crystal water %

14+/- 0.5

13.5

Pb ppm

≤ 10

6.3

As ppm

≤ 2

ND

Cd ppm

≤ 5

1.8

Cr ppm

≤ 5

1

P article size

1-5 um

2.35

Whiteness%

≥ 97

98.5

Expiry date

Apr , 1  2013