The following table compares different standards with average grit sizes in micrometers.

No responsibility is taken for the correctness of this information.

 

Average particle sizes in Micron (μm)

Micro-Mesh

FEPA

(European)

ANSI/CAMI

(USA)

3M-sponges

50

 

P280

240

 

46

 

P320

 

 

40

 

P360

280

 

36

 

 

320

Super fine

35

 

P400

 

 

30

1500

P500

 

 

28

 

 

360

 

25

 

P600

 

 

23

 

 

400

 

22

 

P800

 

 

20

 

 

500

 

18

 

P1000

 

 

15

1800

P1200

600

Ultra fine

13

 

P1500

 

 

12

2400

 

800

 

10

 

P2000

1000

Micro fine

9

3200

 

 

 

8

3600

P2500

1200

 

5

4000

 

 

 

4

6000

 

 

 

3

8000

 

 

 

2

12000

 

 

 

 

MICRON        (μ) measurment, 1 μ is about 0.001mm.

FEPA              Federation of European Producers of Abrasives

CAMI             Coated Abrasives Manufacturer’s Institute

ANSI               American National Standard Institute

JIS                   Japanese Industrial Standard

 

® 2009 Martina Weller


Back