3P meso 112 & 222


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3P meso 112 & 222

The 3P meso 112 & 222 series of instruments offers fully automated volumetric sorption analysis with Nitrogen and other non-corrosive gases on one or two analysis stations respectively. It allows the characterization of mesoporous materials at a minimum of space requirements. The 3P meso 112 is capable of measuring one sample while at the same time carrying out an in-situ degassing of a second sample. At the end of both the analysis and the degassing process, the heating mantle is switched with the dewar and analysis continues on the second sample. Alternatively, both stations can be used for sample activation. A two-station analysis setup with integrated sample preparation is also available in the form of the 3P meso 222. This system allows a simultaneous analysis of two samples.


  • one (3P meso 112) or two independent analysis stations (3P meso 222)
  • besides Nitrogen, other adsorbates are possible such as CO2, Ar, Kr, H2, O2, CO, NH3, CH4
  • Software-assisted presentation of isotherms and kinetic data (equilibrium pressure vs. Time)
  • static-volumetric analysis setup
  • State-of-the-art internal pressure regulation
  • Single-/Multipoint-BET-surface area determination (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/ STSA-surface area of carbon blacks according to ASTM D6556
/4/ Micropore analysis (DIN 66135) according to t-plot or Dubinin-Radushkevich
/5/ PARTICLE WORLD 19; p. 34 – 35; “3P INSTRUMENTS as specialist in the field of adsorption”


  • 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

Other Gas Adsorption Analyzers:

3P meso 400 4 Station Analyzer
3P sync series Up to 4 stations in one Dewar
3P surface DX 4 Station Analyzer
3P micro 100 1 Station Analyzer
3P micro 200 2 Station Analyzer
3P micro 300 3 Station Analyzer


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