Bubble Pressure Method Membrane Pore Size Analyzer
This analyzer is used to test the pore throat size of filter membranes, fibrous membranes, filter cartridges, battery separators, fabrics, nonwovens, paper, ceramics, sintered metals, rocks, and concrete. It is also suitable for evaluating lateral gas diffusion performance of compressed fuel cell carbon paper and assessing liquid and gas transport properties in porous materials. The system is widely used in R&D, production quality control, and laboratory testing where precise pore characterization is critical.
Standards
| Standard Abbreviation | English Translation |
|---|---|
| GB/T 42269-2022 | Pore Size of Separation Membranes - Gas Permeation Method |
| GB/T 32361-2015 | Pore Size of Separation Membranes - Bubble Point and Mean Flow Pore Method |
| ASTM D6767-02 | Determination of the Opening Characteristics of Geotextiles by Capillary Flow |
| ASTM F316-03 | Describing the Pore Size Characteristics of Membrane Filters by Bubble Point and Mean Flow Pore Test |
| ASTM E1288-99 | Determining the Oxygen Transmission Rate (OTR) of Packaging Materials |
| ASTM C-522 | Determining the Water Vapor Transmission Rate (WVTR) of Materials |
| ASTM D-726 | Determining the Air Permeability of Textile Fabrics |
| ASTM D-6539 | Determining the Water Vapor Transmission Rate (WVTR) of Packaging Materials |
| ASTME1294-89 (1999) | Examination of Pore Size Characteristics of Membrane Filters Using Automated Liquid Porometers |
| BS 7591 -4 : 1993 | Porosity and pore size of materials. Part 4 - Determination by water removal |
| BS 3321-1986 | measurement of equivalent pore size of fabrics (bubble pressure test) |
| BS EN240003: 1993 | Determination of pore size by bubble test |
| HY/T 051-1999 | hollow fiber microporous membranes (included in the compilation of membrane technology standards) |
| HY/T 064-2002 | tubular ceramic microporous membranes (included in the compilation of membrane technology standards) |
| HY/T20061-2002 | Hollow fiber microfiltration membrane module |
| GB/T 14041.1-2007 | Hydraulic fluid power - Filter elements - Verification of fabric filter media structural integrity and determination of first bubble point |
| GB/T 24219-2009 | Woven filter cloth - Determination of bubble point pore size |
| GB-T2679.14-1996 | Filter paper and filter board - Determination of maximum pore diameter |
| ISO 2942-2004 | Hydraulic fluid power - Filter elements - Verification of structural integrity and determination of first bubble point |
| DIN ISO 4003-1990 | Permeable sintered metal materials - Determination of pore size by bubble test |
| DIN | Membrane filters - Part 2: Determination of bubble point |
| JISK 3832-1900 | Membrane filters - Bubble point test method |
Features
(1) Provides a comprehensive set of test functions including bubble point pressure, wet and dry membrane flow-pressure curves, minimum and maximum pore size, mean pore size, most probable pore size, gas permeability, gas flux, integrity assessment, fiber membrane burst pressure, liquid permeability, and lateral gas diffusion performance.
(2) Multi-sample cell design allows simultaneous testing of different sample sizes; custom cells can be designed for special samples.
(3) Fully automatic vacuum-assisted wetting device accelerates sample wetting, improving test efficiency by over 50%.
(4) Compatible with a variety of wetting liquids (e.g., BSD15.9), enabling testing of diverse membrane and porous materials.
(5) High-precision dual flow and pressure sensors with segmented measurement ranges, automatic range switching, and program-controlled testing.
(6) All stainless steel pipelines with metal hard seals provide excellent sealing, corrosion resistance, and high-pressure capability.
(7) Detailed experimental log display and recording, accurate to the second, ensuring complete traceability of test data.
Technical Parameters
| Item | Parameter | Value |
|---|---|---|
| Aperture test range (gas-liquid method) | µm | Standard model: 0.012 – 500; Large pore model: 0.12 – 500 |
| Aperture test range (liquid-liquid method) | nm | 5 – 50 |
| Sample cell design | – | Multi-sample cell; customizable for special samples |
| Wetting device | – | Fully automatic vacuum-assisted |
| Wetting liquids | – | Standard (BSD15.9) and other special liquids |
| Flow measurement | – | Dual high-precision flow sensors, segmented ranges, automatic switching |
| Pressure measurement | – | Dual high-precision pressure sensors, segmented ranges, automatic switching |
| Pipelines and seals | – | Stainless steel, metal hard seals, high-pressure and corrosion resistant |
| Data logging | – | Instrument operation log display and recording, accurate to the second |
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