Automated Filter Porosity Testing System
Whats/App: +86 156 1874 6768
Web: standard-groups.com
Application
(1) Determining pore size distribution, bubble point, and mean flow pore size of flat filter membranes.
(2) Quality control in the production of filtration membranes to ensure consistency and compliance with specifications.
(3) Research and development of new membrane materials and designs.
(4) Characterization of membranes for various filtration applications, including water purification, pharmaceutical, food & beverage, and chemical processes.
(5) Investigating performance issues in membranes, such as defects, irregular pore sizes, or compromised integrity.
(6) Validation of membrane integrity and performance for sterilization and critical filtration processes.
Standards
(1) ASTM E1294 — Standard Test Method for Pore Size Characteristics of Membranes by Bubble Point and Mean Flow Pore Test
(2) ASTM F316 — Standard Test Method for Pore Size Characteristics of Membrane Filters by Capillary Flow Porometry
(3) ISO 4003 — Determination of Pore Size and Bubble Point of Membranes
(4) ISO 15901-2 — Pore size distribution and porosity analysis of materials using capillary flow methods
(5) USP <788> — Particulate Matter in Injections (relevance for sterile filtration membrane validation)
(6) EN 14683 — Medical face masks: bacterial filtration performance (membrane evaluation)
Features
(1) Provides precise, quantitative measurements of pore size, bubble point, and mean flow pore size.
(2) Generates full pore size distribution for comprehensive characterization of membranes.
(3) Standard-compliant testing for ASTM, ISO, and other internationally recognized protocols.
(4) Non-destructive testing for certain conditions, allowing membranes to remain intact after measurement.
(5) Automated control system for wetting, pressurization, flow measurement, and data acquisition.
(6) Digital display and software for real-time monitoring and detailed analysis.
(7) Compatible with a wide range of membrane types, materials, and pore size ranges.
(8) Safety features for handling pressurized systems and fluids.
Technical Parameters
| Parameter | Specification |
|---|---|
| Pressure Range | 0–500 kPa (adjustable) |
| Pressure Resolution | 0.01 kPa |
| Gas Flow Range | 0–5000 mL/min |
| Flow Accuracy | ±1% FS |
| Bubble Point Measurement | Automatic detection of first gas flow through largest pore |
| Mean Flow Pore Size | Calculated from flow vs. pressure curve |
| Sample Size | Flat membrane: 10–100 mm diameter (custom holders available) |
| Temperature Monitoring | 0–50°C with ±0.5°C accuracy |
| Wetted Fluids | Water, alcohol, or other standard wetting liquids |
| Control System | PLC or microcontroller-based automatic operation |
| Data Output | PC software, USB, or Ethernet |
| Display | Real-time pressure, flow, and test status |
| Power Supply | AC 220V 50Hz |
Accessories
(1) Membrane holders/cells for various sample sizes
(2) Wetting fluid reservoir and tubing
(3) Pressure transducers and gas flow meters
(4) Automated control software for testing sequences
(5) Digital display or PC interface
(6) Calibration kit for pressure and flow verification
(7) Safety valves and emergency stop system
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