Porosimeters

Advanced mercury and gas porosimeters for high-precision pore structure analysis

Porosimeters

Introduction

Porosimeters (also called a porosimeter) are analytical instruments used to measure pore size distribution, pore volume, and pore structure in a wide range of materials. These insights help scientists and engineers understand how materials behave in real-world applications, from filtration and catalysis to battery performance and pharmaceuticals.

  • Mercury intrusion porosimeters (mercury porosimeter), represented by the AutoPore V, ideal for analyzing mesopores to macropores with high pressure intrusion.
  • Gas adsorption porosimeters (gas porosimeter), including the TriStar II Plus, ASAP 2460, ASAP 2425, 3Flex, and Gemini, which measure micropores and mesopores with high precision. 

Porosimetry is essential in both R&D and quality control, enabling accurate material characterization that directly influences product performance, regulatory compliance, and manufacturing consistency.

Our instruments

Explore the Micromeritics porosimeter range in more detail.

AutoPore V: Mercury porosimetry

AutoPore V

AutoPore V

Mesoporous and macroporous analysis

The AutoPore V uses mercury intrusion to characterize pore sizes from nanometers to hundreds of micrometers. 

It offers high-pressure capability, fast measurement cycles, and fully automated analysis - ideal for catalysts, battery materials, ceramics, filtration media, and geoscience applications.

TriStar II Plus: gas porosimetry

TriStar II Plus

TriStar II Plus

High throughput BET surface area analyzer

A high-throughput, three-station gas adsorption system suitable for routine surface area and porosity measurements. 

Ideal for QC environments requiring repeatable BET surface area measurements and pore size distribution.

ASAP 2460 & ASAP 2425: gas porosimetry, high-throughput

ASAP 2460

ASAP 2460

Surface area and porosimetry system

Multi station adsorption instruments designed for laboratories needing increased throughput while maintaining analytical precision. 

Perfect for QC labs, catalyst producers, and battery material developers.

3Flex: gas porosimetry and advanced characterization

3Flex

3Flex

High performance gas adsorption

A versatile, high-performance adsorption system supporting micropore, mesopore, vapor sorption, and chemisorption studies.

The modular design accommodates up to three analysis stations with advanced data modeling.

Gemini: gas porosimetry, BET-focused

Gemini

Gemini

Rapid and precise surface area analysis

A rapid, cost-effective surface area analyzer optimized for BET measurements using the static volumetric technique.

Ideal for routine QC and material screening.

Our porosimeter instruments

AutoPore V

Mesoporous and macroporous analysis
AutoPore V

TriStar II Plus

High throughput BET surface area analyzer
TriStar II Plus

ASAP 2460

Surface area and porosimetry system
ASAP 2460

ASAP 2425

Surface area and porosimetry system
ASAP 2425

3Flex

High performance gas adsorption
3Flex

Gemini

Rapid and precise surface area analysis
Gemini

Industry applications

Porosimeters play a critical role across industries where pore structure influences performance, stability, and functionality. 

From R&D to production, porosity data enables better design, formulation, and quality control.

How our products compare

  • AutoPore V

    Mesoporous and macroporous analysis

    AutoPore V
    • Mercury porosimetry
    • Gas adsorption
    • Micropore analysis
    • Mesopore analysis
    • Macropore analysis
  • TriStar II Plus

    High throughput BET surface area analyzer

    TriStar II Plus
    • Mercury porosimetry
    • Gas adsorption
    • Micropore analysis
    • Mesopore analysis
    • Macropore analysis
  • ASAP 2460

    Surface area and porosimetry system

    ASAP 2460
    • Mercury porosimetry
    • Gas adsorption
    • Micropore analysis
    • Mesopore analysis
    • Macropore analysis
  • 3Flex

    High performance gas adsorption

    3Flex
    • Mercury porosimetry
    • Gas adsorption
    • Micropore analysis
    • Mesopore analysis
    • Macropore analysis
  • Gemini

    Rapid and precise surface area analysis

    Gemini
    • Mercury porosimetry
    • Gas adsorption
    • Micropore analysis
    • Mesopore analysis
    • Macropore analysis