PMI Updates
Water Vapor Transmission Analyzer
We are now accepting registrations for our October 2008 Short Course
Welcome to PMIAPP Europe
Porous Materials, Inc. is the leading designer and manufacturer of custom scientific instruments for characterization of porosity, pore diameter, pore volume, pore surface area, liquid permeability, gas permeability, density, and integrity testing. PMI also provides consulting services to seek out solutions for characterization of porosity and analysis of porosity. The testing services division of PMI offers contract testing services for a wide variety of tests.
- We offer many different types of products to service a wide array of industries, as well as many different types of tests with our in-house testing services.
- PMI is now accepting registrations for its October 2008 Short Course here in Ithaca, NY. See out Short Course section for more information.
- Porous Materials, Inc. is the worldwide leader in custom porosity solutions. PMI offers many customizable porometers, permeameters, porosimeters, BET/sorptometers and pycnometers, as well as a world-class testing facility.
- Advanced Pressure Products is PMI's sister company. APP develops the most advanced and efficient pressure and flow control technology for various applications
- View our new and innovative products.
Latest News
PMI Announces Two New Products
PMI is proud to announce the completion of two new products - our patented Advanced Capillary Flow Porometer and our Compression Liquid Extrusion Porosimeter. More information on each of these machines can be found on the products section of the website.
Short Course Registration
PMI is now accepting registrations for its October 2008 Short Course. The course will be held during the week of October 14-16, 2008 at its company headquarters in Ithaca, NY. If you would like more information on the course, or to register now, please visit our Short Course section of the website. You can also request more information by emailing us here. August 31 is the deadline to get the discounted rate for early registration. By registering before September 1, you will save $100 on the price of the course, so register now!
Featured Product
Water Vapor Transmission Analyzer
The PMI Water Vapor Transmission Analyzer measures the transmission rate of water vapor through a variety of materials under a variety of imposed conditions. The test conditions can be made to simulate actual environments of the materials, and the test results are accurate and reproducible.
The machine works by maintaining two independent streams of gas on the two sides of the sample at a desired temperature. Humidity and gas flow rates are measured, and the transmission rate through the sample is determined using mass balance.
Some key features of this machine are:
- Desired humidity on any side of the sample maintainable
- Any desired pressure gradient achievable
- Any desired test temperature achievable
- Simultaneous imposition of pressure and humidity gradients possible
- Flat samples in a wide range of sizes usable
- Completely automated Test execution, Data acquisition, Data storage, Data reduction
For more information on this or any of our other machines, please contact us.

