等级Grade

总氧化镁

-干基

Total MgO

-Dry basic

(%min)

水溶氧化镁

-干基

Water Soluble MgO-Dry basic

(%min)

水溶硫-干基

Water Soluble S-Dry basic

(%min)

氯

Cl

(%max)

铅

Pb

(ppm max)

砷

As

(ppm max)

汞

Hg

(ppm max)

镉

Cd

(ppm max)

酸碱度

PH

硬度Hardness

(N min)

AA

27

25

20

0.5

10

10

1

10

7-10

40

A

27

23

18.4

0.5

10

10

1

10

8-10

40

B

27

22

17.6

0.5

10

10

1

10

8-10

40

C

27

20

16

0.5

10

10

1

10

8-10

40

D

27

18

14.4

0.5

10

10

1

10

8-10

40

E

27

15

12

0.5

10

10

1

10

8-10

40

粒度Size:

1-2mm/1-4mm/2-4mm/2-5mm/2-6mm 90% min passing