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Porous Materials, Inc > News
PMI News, Events & Press Releases
Below you will find the latest news and information from PMI and APP.
PMI Announces Dates for May 2012 Short Course
The next PMI Short Course will be held during the week of May 15-17, 2012, with Monday and Friday set aside for sight-seeing and meeting with PMI lab technicians. For more information on the course, or to register online, please visit the course section of the website at www.pmiapp.com/shortcourse.
PMI Announces New Cartridge Bubble Point Tester
PMI is proud to announce it's newest instrument - the Cartridge Bubble Point Tester. This instrument brings a solution to many problems faced by industry personnel when testing their filter cartridge media. The versatility, ease of use, and safety aspects of this machine make it a valuable tool in the filtration media industry, and has been built with the end user in mind. Some of the key features of the machine are:
- Accomodation of a Wide Range of Cartridge Sizes
Deep sample chambers, detachable head attachments, and movable clamping heads make this an extremely versatile machine.
- Quick Loading and Unloading of Cartridge for Speedy Testing
The cartridges are loaded in the sample chamber simply by using two levers. The horizontal lever is used to move the clamping head forward and backward to allow for cartridge length, and the rotating lever is used to lock the cartridge.
- High Volume Testing
The machine has two sample chambers, and each is provided with a horizontal lever and a rotating lever for quick and easy loading and unloading.
- Automatic Wetting of Sample
The wetting liquid is automatically added to the sample chamber by an inlet inside the chamber. Enough liquid is added to adequately cover the entire sample.
- Testing of Pores on All sides of the Cartridge
A rotating cartridge holder allows for even and equal testing on all sides of the sample. The speed at which the samples rotate can be adjusted by the user.
- Conservation of Wetting Liquid
The liquid is automatically drained from the sample chamber and pumped to a storage tank, which is then used to fill the sample chamber again.
- Ventilation of the Test Chamber
A ventilation fan constantly removes vapor of the wetting liquid from the sample chamber. The vapor is disposed off in an appropriate manner, and the operator is prevented from inhaling the vapor from the wetting liquid.
For more information on this instrument, please contact PMI.
PMI Unveils new Fuel Cell Porometer
The PMI Fuel Cell Porometer provides fully automated through-pore analysis including pore-throat diameter, pore size distribution, mean flow pore diameter, and liquid & gas permeability. The porometer's versatility allows the user to simulate operating conditions. The instrument has special features to measure the effects of compressive stress on a sample, test temperature, sample orientation, layered structure on pore structure characteristics. User-friendly and nondestructive, the Fuel Cell Porometer is an asset in quality control and R&D environments.
The Fuel Cell Porometer is designed to measure all the relevant pore structure characteristics of fuel cell components. Whether it be the pore distribution of electrodes, a change in pore size caused by humidity, or testing the surface area of through pores for testing reaction rate, the PMI Fuel Cell Porometer is built to meet the manufacturer's needs.
The machine has the following unique measurable characteristics:
- Characteristics measured using gas with 0 to 100 % humidity
- Test temperatures can be 200°C and in special situations 800°C
- Pore size measured in samples under compressive stress of up to 1000 psi
- Pore structure of each layer of a multilayer composite
- Pore diameters down to about 0.013 µm
New Capillary Condensation Flow Porometer
New instrument to help pharmaceutical, biotechnological & filtration companies in characterizing porous membranes without the harmful effects of high pressure or extreme temperatures.
The PMI Capillary Condensation Flow Porometer passes vapor through a sample held in the sample chamber. The pressure of the vapor is increased until vapor condenses in some of the pores, thus stopping the flow of the vapor through these pores. Pore size is determined by the pressure at which the vapor condenses into the pores, and pore distribution is determined from the vapor flow rate due to a small imposed pressure gradient.
The PMI Capillary Condensation Flow Porometer has the unique ability to measure gas permeability and flow rate distribution in addition to measuring pore diameter of nanopore samples without using any toxic materials or extreme pressures and temperatures. No other instrument has such capabilities. It is utilized for characterization of porous membranes used in many industries such as: Biotechnology & Healthcare, Pharmaceuticals, Filtration, Food & Beverage, and Environmental without any fear of harmful effects of high pressures and extreme temperatures on samples. Fragile samples with small pores can be easily evaluated by this technique.
The machine has the following features:
- Fully automated, simple to use & very little operator involvement
- Highly reproducible & accurate
- Pressure required is very small.
- Normally liquid nitrogen temperatures are not required
- A wide variety of samples can be investigated
- No toxic material like mercury is used. No health hazard. No disposal related cost.
For more information, please contact us.
PMI Announces New Compression Liquid Extrusion Porosimeter
The PMI Compression Liquid Extrusion Porosimeter (LEP) has the unique ability to measure pore volume and pore diameter while keeping the sample under compressive stress. The instrument is employed for characterization of porous materials used in many industries such as biotech, pharmaceutical, food, and environment. It produces no harmful effects on personnel or environment.
Some of the key features of this machine are:
- Automatic application of compressive stress on the sample
- Any desired compressive stress up to 1000 psi may be selected
- Without dismantling the sample chamber, the pore structure of the same sample can be measured as a function of compressive stress
- Fully automated operation with a minimum of operator involvement
- One instrument performs like two: Measures liquid permeability like a permeameter, and pore volume like a Mercury Intrusion Porosimeter
- No toxic material (like mercury) is used - no health hazards & no disposal related cost
PMI Unveils new Advanced Capillary Flow Porometer
The Capillary Flow Porometers determine pore size, pore distribution, and gas permeability by measuring gas flow rates through the dry and wet sample as functions of differential gas pressure. PMI has developed the Advanced Capillary Flow Porometer using the latest patented technology so that the test duration is considerably reduced with hardly any operator intervention. The results are the most accurate and highly repeatable.
The advanced Capillary Flow Porometer has the following unique features:
- Most Advanced Porometer
- Latest Patented Technology
- Fully Automated Operation
- Automated application of uniform pressure on o-rings for perfect seals
- Automated wetting of sample without test interruption & dismantling of the sample chamber
- Automated compression of sample at the desired pressure
- Highly Versatile
- Use of many shapes & sizes of samples
- Cut sample may be used
- Product can slide into the chamber, with no need to cut the sample
- Unique Design
- Turbulent free gas flow
- Minimization of pressure drop in the system
- Very short test duration
- Hardly any operator involvement
- The most accurate & reproducible results
More information can be found in the products section of our website.