SKC Filter Selection Guide
| Material | Abbr. | Common Pore Sizes | Main Properties | Air Sampling Applications |
|---|---|---|---|---|
| Mixed Cellulose Ester | MCE or MEC | 0.45 µm 0.8 µm 1.2 µm 5.0 µm |
Hydrophilic Readily soluble for atomic absorption analysis Readily rendered transparent for transmitted light microscopy Dissolve and clear easily |
Metal dust analysis Asbestos and man-made fibers |
| Polyvinyl Chloride (Pure Homopolymer) GLA-5000 |
PVC or PH-PVC | 0.5 µm 0.8 µm 5.0 µm |
Hydrophobic Non-oxidizing surface Silica-free Low ash Low tare weight for gravimetric analysis |
Gravimetric analysis Hexavalent chromium |
| Polytetrafluoroethylene | PTFE | 0.5 µm 1.0 µm 2.0 µm 5.0 µm |
Hydrophobic Inert to solvents, acids, and bases Autoclavable |
Alkaline dusts Polynuclear aromatics Pesticides Isocyanates |
| Polycarbonate | PC | 0.3 µm 0.4 µm 0.8 µm |
Hydrophobic Microscopically smooth surface Straight-through pores Extremely thin (10 to 20 µm) and transparent Autoclavable |
Scanning electron microscopy Asbestos fibers |
| Silver | AG | 0.45 µm 0.8 µm |
Wide solvent compatibility Higher temperature tolerance Autoclavable Uniform porosity and thickness |
Bromine Asbestos by TEM Silica by x-ray diffraction |
| Glass Fiber | GF or FG | Liquid Nominal Rating 1.0 µm | Partially hydrophobic Higher temperature tolerance Autoclavable High particulate retention |
Pesticides Ethylene glycol Coarse gravimetric Isocyanates |
| Quartz | QZ | Liquid Nominal Rating 1.2 µm | Same as fiber glass Autoclavable Low level metals content High temperature 300 C |
Gases Aerosols PM10 Diesel particulates |
| Cellulose | CEL | Nominal | Autoclavable Uniform strength Ashless (Type 40) |
AA HPLC |
