Items

D ( 1.6-2. 5)mm

D (3.0-5.0)mm

Classification

3A

4A

5A

13X

3A

4A

5A

13X

Grade

I

II

I

II

I

II

I

II

I

II

I

II

I

II

I

II

Static water adsorption /   %   ≥

21.0

19.0

22.0

20.0

21.0

20.0

26.0

24.0

21.0

19.0

22.0

20.0

21.0

20.0

26.0

24.0

Wear rate /   %   ≤

0.25

0.50

0.20

0.60

0.10

0.20

0.10

0.50

0.25

0.50

0.20

0.60

0.10

0.20

0.10

0.50

Particle Rate /   %   ≥

98.0

96.0

98.0

90.0

96.0

95.0

98.0

90.0

98.0

96.0

98.0

90.0

96.0

95.0

98.0

90.0

Bulk density /   (g/mL) ≥

0.75

0.65

0.68

0.65

0.66

0.62

0.64

0.59

0.75

0.65

0.68

0.65

0.66

0.62

0.64

0.59

Static formaldehyde adsorption   /   %   ≥

-----

15.0

14.0

------

------

------

15.0

14.0

------

------

Static CO2 Adsorption (0℃±1℃)   ≥

------

------

------

20.0

18.0

------

------

------

20.0

18.0

Static CO2 Adsorption (25℃±1℃)   ≥

------

------

------

18.5

16.5

------

------

------

18.5

16.5

Crushing strength

Crushing strength

(N/PC) ≥

85.0

55.0

35.0

30.0

30.0

25.0

30.0

20.0

100.0

60.0

80.0

60.0

70.0

60.0

85.0

65.0

Relative standard deviation of crushing strength ≤

0.3

0.3

0.3

0.4

0.3

0.3

0.3

0.3

0.4

0.3

Moisture /   %    ≤

1.5

1.5

1.5

1.5

1.5

1.5

1.5

1.5

Static ethylene adsorption /   (mg/g) ≤

3.0

------

------

------

3.0

------

------

------

Dynamic water adsorption /   %   ≥

2.0

------

------

------

2.0

------

------

------

Static hexane adsorption   %    ≥

------

------

12.5

11.0

------

------

------

12.0

10.5

------

Identity

Off white, off yellow or earthy red spherical particles without impurities