Diatomite
| Median Pore Size (microns) |
Perm ** | Loose Weight #/ft3 |
% Retained 150 mesh |
deltaP *** |
|
|---|---|---|---|---|---|
| Celite 507 | 0.5 |
0.02 |
9 |
n/a |
8 |
| Celite 505 | 2 |
0.06 |
9 |
n/a |
3 |
| Celite 500 | 1.5 |
0.05 |
8 |
1 |
3.2 |
| Filter Cel | 2.5 |
0.07 |
8.5 |
1 |
2.6 |
| Celite 577 | 2.5 |
0.16 |
9 |
1.5 |
1.2 |
| Standard Super Cel | 3.5 |
0.25 |
9 |
4 |
0.7 |
| Celite 512 | 5 |
0.50 |
9 |
5 |
0.4 |
| Celite 513 | 6 |
0.75 |
10 |
6 |
0.2 |
| Hyflo Super Cel | 7 |
1.10 |
10 |
7 |
0.1 |
| Celite 501 | 9 |
1.30 |
10 |
8 |
0.07 |
| Celite 503 | 10 |
1.90 |
12 |
9 |
0.06 |
| Celite 535 | 13 |
3.00 |
12 |
10 |
0.03 |
| Celite 545 | 17 |
4.00 |
12 |
12 |
0.02 |
These are typical or estimated physical properties, not specifications and thus should be used accordingly.
** d'Arcy unit, a measurement of filter cake permeability expressed by the formula K=HL/((1/Q).A.deltaP) named after the French mathematician that first developed the equation.
*** The approximate pressure drop (# per square inch) @ 1 gallon per square foot per minute for a precoat of 0.15 pounds of Celite per square foot.
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