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Micropowder grit size comparisons

SUN-AB

CHINA

JIS R6001-1998

ANSI B74.10-
1977(R1988)

FEPA42GB-1984
DIN69101-1985

Grit

d50 value
(in �m)
Sedigraph
5000D

GB2477-83

GB/T2481.2-1998
(ISO8486.2-1996)

GB/T9258.1-2000
(IS06344-1997)

Grit

d50 value(in �m)

Grit

d50
value
(in �m)
Sedimen-
tation tube
method

Grit

d50 value(in �m)

Grit

Size
range
(in �m)

Grit

d50 value
(in �m)

Grit

d50 value
(in �m)

Sediment-
ation tube
method

Electric
resistance
method
(with Coulter

Standard
Werte der
Mikro-F-Reihe

Sedigraph
5000D

P240

58.5�2

240

60.0�4.0

57.0�3.0

P280

52.2�2

280

52.0�3.0

48.0�3.0

F230

50.0�3.0

F230

53�3

P320

46.2�1.5

320

46.0�2.5

40.0�2.5

240

53.5-50

F230

53�3

50.0�3.0

F240

42.0�2.0

F240

44.5�2

P360

40.5�1.5

360

40.0�2.0

35.0�2.0

F240

44.5�2

42.0�2.0

P400

35.0�1.5

400

34.0�2.0

30.0�2.0

280

44-40.5

F280

34.5�1.5

W63

63 ~ 50

F280

36.5�1.5

P500

30.2�1.5

500

28.0�2.0

25.0�2.0

320

36-32.5

F280

36.5�1.5

34.5�1.5

F320

27.7�1.5

W50

50 ~ 40

F320

29.2�1.5

P600

25.8�1.0

600

24.0�1.5

20.0�1.5

360

28.8-25.8

F320

29.2�1.5

27.7�1.5

F360

21.6�1.5

W40

40 ~ 28

F360

22.8�1.5

P800

21.8�1.0

700

21.0�1.3

17.0�1.5

400

23.6-20.6

F360

22.8�1.5

21.6�1.5

F400

16.5�1.0

W28

28 ~ 20

F400

17.3�1.0

P1000

18.3�1.0

800

18.0�1.0

14.0�1.0

500

19.7-16.7

F400

17.3�1.0

16.5�1.0

F500

12.3�1.0

W20

20 ~ 14

F500

12.8�1.0

P1200

15.3�1.0

1000

15.5�1.0

11.5�1.0

600

16-13

F500

12.8�1.0

12.3�1.0

P1500

12.6�1.0

1200

13.0�1.0

9.5�0.8

F600

9.0�1.0

W14