Pore throat testing of through holes in filter membranes, fibre membranes, filter cartridges, battery diaphragms, fabrics, nonwovens, paper, ceramics, sintered metals, rocks, concrete and other materials.
| Test Functions |
| Bubble pressure | Wet film flow-pressure curves (wet curve) |
| Bubble point aperture (maximum aperture) | Dry Membrane Flow - Consolidation Curve (Dry Curve) |
| Minimum pore size | Gas permeability |
| Average pore size | Gas Flux |
| Maximum pore size | Integrity evaluation |
| Pore size distribution | Liquid permeability (liquid-liquid function) |
| Liquid flux (liquid-liquid function) | |
| Standard Code |
Standard Description |
| GB/T 42269-2022 | Separation Membrane Pore Size Test Methods Gas Permeation Method |
| GB/T 32361-2015 | Separation membrane pore size test method Bubble point and average flow method |
| ASTM D6767-02 | Method for characterising geotextile pore opening by capillary flow |
| ASTM F316-03 | Test Method for Characterising the Pore Size of Membrane Filters by Bubble Point and Mean Flow Pore Tests |
| ASTM E1288-99 / C-522 / D-726 | Measurement of gas permeability through a sample |
| ASTME1294-89 (1999) | Test Method for Examining Pore Size Characteristics of Membrane Filters by Automated Liquid Porosity Meter |
| BS 7591 -4 : 1993 | Porosity and pore size of the material. Part 4 - De-watering Assessment Method |
| BS EN240003: 1993 | Porous sintered metallic materials . Determination of pore size by bubble test |
| ISO 2942-2004 | Hydraulic transmission - filter cartridges - verification of structural integrity and determination of first bubble point |