Liquid Extrusion Porosimeter

The PMI Liquid Extrusion Porosimeter is a specialized instrument designed to measure through-pore volume, pore volume distribution, and liquid permeability—without the use of mercury. It is widely used for the characterization of porous materials across industries including biotechnology, pharmaceuticals, filtration, food processing, and environmental applications.

Liquid Extrusion Porosimeter

Overview

The PMI Liquid Extrusion Porosimeter is a specialized instrument designed to measure through-pore volume, pore volume distribution, and liquid permeability—without the use of mercury. It is widely used for the characterization of porous materials across industries including biotechnology, pharmaceuticals, filtration, food processing, and environmental applications.

Unlike mercury intrusion systems, this instrument operates using non-toxic liquids, ensuring operator safety and eliminating hazardous waste disposal costs.

  • One instrument performs like two. Measures liquid permeability like a permeameter and pore volume like a mercury intrusion porosimeter
  • No toxic material like mercury used. No health hazard. No disposal-related cost
  • Fully automated. Simple to use. Very little operator involvement
  • Highly reproducible and accurate
  • A wide variety of samples can be investigated
  • Pressure required almost an order of magnitude less than that required for mercury intrusion. Can be used for pressure sensitive materials
  • Only instrument capable of measuring through-pore volume
  • Effects of application environment measurable (stress, temperature, chemical environment)
  • Capable of measuring very large pores (up to 1000 microns)

Specifications

Dimensions36 in (H) × 19 in (W) × 24 in (D)
Intrusion Volume Range0 to 50 cc (others available)
Intrusion Volume Resolution0.01 cc
Pore Size1000 µm to 0.06 µm
Pressure Range0 to 100 psi (others available)
Resolution1 part in 60,000
Sample Size1.5 inches diameter × 1 inch thickness (custom sizes available)
Weight150 lbs