
Membrane for Air Monitoring Applications
- Dissolves completely using standard digestion procedures.
- Cleans completely, possesses low artifacts, and offers minimal interference in fiber counting.
- GN-4 Metricel filters meet NIOSH requirements for airborne metals and asbestos monitoring.
过滤介质
- Hydrophilic mixed cellulose esters
孔径
- 0.8 µm, 0.45 μm
Typical Thickness
- 152 μm (6 mils)
Typical Filter Weight
- 4 mg/cm2
Typical Water Flow Rate
- 0.8 µm:129 mL/min/cm2 at 0.7 bar (70 kPa, 10 psi)
- 0.45 µm:> 65 mL/min/cm2 at 0.7 bar (70 kPa, 10 psi)
Typical Air Flow Rate
- 0.8 µm:55 L/min/3.7 cm2 at 0.9 bar 90 kPa, 13.5 psi)
Maximum Operating Temperature – Water
- 74 °C (165 °F)
Typical Moisture Pick-Up
- < 1% after 24 hr at 48% relative humidity at 23 °C (73 °F)
Extractables - Boiling Water
- < 2%
Minimum Bubble Point - Water
- 1.0 bar (100 kPa, 15 psi)
Refractive Index
- 1.512