3P micro series


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3P micro series

The 3P micro series includes fully automated volumetric sorption analyzers for measuring adsorption and desorption of Nitrogen and other non-corrosive gases on one (3P micro 100), two (3P micro 200) or three (3P micro 300) independent analysis stations.

The instruments can be fitted with a turbomolecular pump and low-pressure sensors for micropore analysis and Krypton physisorption. Depending on customer requests, the instruments can be equipped with only mesopore stations (A version), micro- and mesopore stations (B/B1 version) or only micropore stations (C/C1 version). Each analysis station has its own dosing manifold for optimal analysis duration. Regardless of the starting time, the analysis will take the same amount of time! Each analysis station comes with its own p0 cell with a dedicated pressure sensor. The stations are fully independent from one another, analysis can be started at any time.

The 3P micro 100 and 200 have two integrated separate degassing stations that can be operated parallel to the analysis stations. The three analysis stations of the 3P micro 300 can be used for in-situ sample preparation to avoid sample contamination.


  • 3P micro 100 and 200: two separate sample preparation stations with integrated cooling trap, optional separate pump system for degasser available
  • 3P micro 300: 3 independent analysis stations with integrated in-situ sample preparation
  • Easy upgrades to micropore capabilities
  • besides Nitrogen, other adsorbates are possible (e.g., CO2, Ar, Kr, H2, O2, CO, NH3, CH4) (10 gas ports)
  • Software-assisted presentation of isotherms and kinetic data (equilibrium pressure vs. Time)
  • static-volumetric analysis setup
  • State-of-the-art internal pressure regulators
  • Single-/Multipoint-BET surface area (DIN 66131, ISO 9277)
  • Langmuir surface area
  • Adsorption and desorption isotherms
  • Total pore volume and average pore radius
  • NLDFT (density functional theory)
  • Mesopore size distribution according to BJH (DIN 66134) and DH method
  • Micropore analysis (DIN 66135) according to t-plot, Dubinin-Radushkevich, Horvath-Kawazoe and Saito-Foley method

Literature and Norms

/1/ Single-/Multipoint BET surface area (DIN 66131, ISO 9277)
/2/ Mesopore size distribution according to BJH (DIN 66134)
/3/ Micropore analysis (DIN 66135) according to t-plot or Dubinin-Radushkevich
/4/ STSA-surface area of carbon blacks according to ASTM D6556
/5/ PARTICLE WORLD 19; p. 34 – 35; “3P INSTRUMENTS as specialist in the field of adsorption”


  • One or two station static vapor sorption, surface area, micro- and mesopore analyzer
  • Turbo pump system, temperated manifold (50°C)
  • One extra degassing station and in-situ degassing incl.
  • external degassing unit for 4 stations
  • sample preparation in vacuum
  • max. degasser temperature: 400 °C
  • Temperature range 77 – 323 K
  • Temperature stability ± 0.004 K (standard deviation)
  • Easy-to-use software for data acquisition, display, analysis and archiving

Tempering Kit

Tempering Kit for all sorption instruments, 0-50°C
  • for all sorption instruments, 0-50°C

Other Gas Adsorption Analyzers:

3P meso seriesUp to 4 stations, especially suitable for mesopore analysis
3P sync seriesUp to 4 stations in one dewar, mesopore analysis with minimal space consumption
3P surface DX4 stations, suitable for surface analysis

Service hotline (Germany)
+49 8134 9324 0

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