Specifications: Cellulose Acetate Membrane
| Pore Size (µí) |
Bubble Point1 |
Flow Rate2 |
Porosity3 (%) |
Thickness (µí) |
Weight (mg/cm2) |
Density (g/cm2) |
Mimimum
Burst Pressure4 (kg/cm2) |
| kg/cm2 |
PSI |
Water (ml/min/cm2) |
Air (l/min/cm2) |
| 3.0 |
0.4 |
5.7 |
440 |
54 |
78 |
135 |
4.0 |
0.3 |
> 0.7 |
| 0.8 |
1.0 |
14.2 |
160 |
13.5 |
72 |
125 |
4.7 |
0.39 |
³¼/font> 1.0 |
| 0.45 |
2.6 |
37 |
35 |
4.0 |
67 |
125 |
5.5 |
0.44 |
³¼/font> 2.0 |
| 0.2 |
3.3 |
47 |
16 |
1.9 |
66 |
125 |
5.8 |
0.46 |
³¼/font> 2.0 |
- Wetting time: < 3 seconds to wet a 47 mm diameter disc
with aqueous 1% methylene blue
- Rf (refractive index) = 1.47
- Maximum operating temperature = 180C
| |
DEFINITIONS:
Bubble point is the minimum pressure required to
force air through a membrane which has been prewet with water
Flow Rate indicates initial flow rate at 10 PSI using a KGS 47 filter holder
Water: using water prefiltered to
0.1 µí pore size
Air: using prefiltered nitrogen at 10 psi
Porosity refers to the percent open area
Burst pressure is the minimum pressure required to rupture
exactly 1 cm2 area of dry unsupported membrane
|
|
Ash Content of White Plain Cellulose Acetate Membrane Filters (ppm)
| Al |
<5.0 |
K |
2.0 |
Ni |
<0.5 |
| Ca |
36.4 |
Li |
<0.5 |
Pb |
<0.5 |
| Cd |
<0.1 |
Mg |
1.9 |
Si |
7.8 |
| Cr |
2.2 |
Mn |
<0.5 |
Sn |
<0.5 |
| Cu |
1.2 |
Mo |
<0.5 |
Ti |
<5.0 |
| Fe |
1.6 |
Na |
5.9 |
Zn |
0.6 |
Chemical Compatibility
|
Membranes
Prefilters