Posts tagged porous materials

Sample Testing Services

Sample testing

Before you set out to buy an instrument for characterisation of any material, the first question you should ask is what will be the most appropriate method to obtain the information needed. As well as developing and manufacturing a range of high-quality analytical equipment, including porometers, permeameters and porosimeters, PMI can advise on what techniques to use – and can even do the analysis for you. Continue reading Sample Testing Services

What Is a Porosimeter?

Liquid extrusion porosimeter from PMI

Liquid extrusion porosimeter

While exploring the topic of pore size and other characteristics of porous materials, the instruments we come across most regularly are the many and varied porometers and permeameters. Occasionally on this pore size website we have touched upon porosimeters, and for clarity I would like to return briefly to that subject today. Continue reading What Is a Porosimeter?

What Does a Permeameter Do?

PMI liquid permeameter

PMI liquid permeameter

When characterising the porous nature of a material we measure many aspects of pore size, but often we are also interested in the material’s permeability. This is, quite simply, a measurement of its ability to allow fluid to flow through it. We can determine permeability using a permeameter, of which many different varieties exist, and this is the topic I would like to dwell upon today. Continue reading What Does a Permeameter Do?

Porous Materials, Inc.

PMI bldg

You will probably have noticed that a number of the porometers, permeameters and porosimeters described on this website have been designed and manufactured by PMI – Porous Materials, Inc. This is hardly surprising, as these instruments, which are highly recommended by Meritics, have proved very popular with a wide variety of users. Today I thought I would have a look at the background of PMI. Continue reading Porous Materials, Inc.