Feature

1. Testing of nanomicron pore samples
2. Many sample geometry (Ex: sheets, tubes, hollow fibers, cartridges)
3. Use of many wetting liquids (Ex: water, alcohol, Silwick, and Galwick)
4. Tests in QC, research, or any number of user defined modes
5. Test method include: Liquid-Liquid Replacement Method.
6. Real-time graphic display
7. Fully automated and computer controlled

Principle

• Base on Capillary Flow method: ASTM F316-03
• Where a non toxic wetting liquid is allowed to spontaneously fill the pores in the sample.
• place the sample into chamber and a non reacting liquid 2 is allowed to displace liquid1 from pores.

• As the pressure is increased, more and more smaller pores are progressively emptied. The pressure and flow rate of gas through the emptied pores provides the through pore distribution.

• The pressure at which through pores empty is inversely proportional to the pore size (according to the Washburm calculation equation).

Function

• Mean Pore Size
• Pore Size Distribution
• Pore Flow % Distribution
• Pore Number Distribution
• Bubble Point (the largest through pore throat diameter)
• Bubble Point Mean flow pore diameter (50% of flow is through pores smaller than the mean flow pore)
• Liquid Permeability
• Diameter of the most constricted part of a through pore (Pore throat)

Data

✓ Porometry Text and Graph Report of Single data and Multi Data
✓ Multi Report: up to 10 data sets simultaneously
✓ Reports:
Bubble point, Mean flow pore diameter, Cumulative and Differential Filter Flow%、Flow rate vs Pressure, Fitted pore size distribution vs Diameter, Raw pore size distribution vs Diameter, %Cumulative filter flow vs Diameter, Gas permeability (Darcy, Gurley, Frazier)、Pore size distribution and Cumulative FF, Frequency distribution and Cum. FF, …
✓ Data Output: Raw Text、Table Delimited、Excel (Graph Analysis Inclusive)