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| FEPA P Grit Sizes-Coated Abrasives |
| Oceanus Industrial- 2013-01-17 17:37:09 作者:admin 来源: 文字大小:[大][中][小] |
Aluminium Oxide & Silicon Carbide Grains
FEPA-standard 43-1:2006: Grains of fused aluminium oxide, silicon carbide and other abrasive materials for coated abrasives Macrogrits P 12 to P 220
FEPA-standard 43-2:2006: Grains of fused aluminium oxide, silicon carbide and other abrasive materials for coated abrasives Microgrits P 240 to P 2500
The mean diameters of macrogrits shown in the table are estimated and for information only, the FEPA-Standard defines them as a range and not a single value.
|
MACROGRITS |
MICROGRITS |
|
Grit designation |
Mean
Diameter
in µm |
Grit
designation |
Mean grain
size ds50-value in μm |
|
P 12 |
1815 |
P 240 |
58.5 ± 2 |
|
P 16 |
1324 |
P 280 |
52.2 ± 2 |
|
P 20 |
1000 |
P 320 |
46.2 ± 1.5 |
|
P 24 |
764 |
P 360 |
40.5 ± 1.5 |
|
P 30 |
642 |
P 400 |
35.0 ± 1.5 |
|
P 36 |
538 |
P 500 |
30.2 ±1.5 |
|
P 40 |
425 |
P 600 |
25.8 ± 1 |
|
P 50 |
336 |
P 800 |
21.8 ± 1 |
|
P 60 |
269 |
P 1000 |
18.3 ± 1 |
|
P 80 |
201 |
P 1200 |
15.3 ± 1 |
|
P 100 |
162 |
P 1500 |
12.6 ± 1 |
|
P 120 |
125 |
P 2000 |
10.3 ± 0.8 |
|
P 150 |
100 |
P 2500 |
8.4 ± 0.5 |
|
P 180 |
82 |
|
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P 220 |
68 |
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The particle size distribution of macrogrits is determined by sieving, while the microgrits have been measured by sedimentation (US-Sedimentometer).
More information can be found in the FEPA-Standards 43-1:2006 ; 43-2:2006 and in ISO 6344.
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