NO.

Inspection Items

Technical Requirements

High-quality rank

Lightning arrester

Japanese

Top grade
Heavy breathing

1

Content

99.7

99.7

99.5

99.7

2

Zn

no

no

no

no

3

PbO

0.037

0.037

0.005

0.003

4

Mn

0.0001

 

 

 

5

CuO

0.0002

0.0002

 

0.0002

6

K

 

0.001

 

 

7

Na

 

0.001

 

 

8

Fe

 

0.002

 

0.001

9

Cd

 

0.005

0.002

0.0005

10

Insoluble Content in HCL

0.006

0.006

 

0.003

11

Ignition Loss

0.2

O.2

 

0.2

12

Soluble Content in Water

0.1

 

O.1

O.1

13

Heat Loss(105℃)

0.3

0.3

O.3

0.3

14

Sieve Residue(45μm)

0.1

O.1

0.1

0.05

15

PH

 

7-7.8

 

 

16

Diameter on Ave rage(μm)

 

O.5

 

 

17

Appearance

White

White

White

White

18

Nitrogen Adsorption

Surface Area

 

 

4

4

 
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