NO

Item

UNIT

STANDARD

TEST VALUE:

1

Thickness

mm

0.35±0.005

0.35

2

Width

mm

40±0.5

40

3

Ration

g/m2

60±10%

60

4

Ash content≤

%

0.7

0.58

5

moisture≤

%

8

8

6

Ether extraction liquid≤

%

0.3

0.3

7

Water extraction liquid PH

6.5~8

7

8

Tensile strength≥

N/15mm

22

22

9

Wrinkling degree

%

50~60

50