TEL: +86 010 63326036
TEL: +86 010 63326024
  • JWGB Basic Series
  • Automatic BET Surface Area and Pore Size Analyzer
  • Single-/Multipoint BET Surface Area
  • BJH Adsorption and Desorption
  • Horvath-Kawazoe
  • Saito-Foley
  • Material Research
  • Chemical Engineering
  • New Energy
  • Catalytic Technologies
  • product_basic
  • Range of Pore Diameter
  • 0.35–500nm
  • Range of Specific Surface Area
  • >0.0005m2/g
  • Repeatability of Median Pore Diameter
  • <0.02
  • Repeatability of Specific Surface Area
  • ±1%
  • Outline
  • The JWGB Basic Series can accurately produce surface area and pore size results of powder materials. JWGB Basic Series are divided into three types: Meso 112, Micro 122W, and Meso 222. Equipping with 10 torr high-sensitive pressure sensors and owning secondary adsorption pump technique, Micro 122W can effectively be used to analyze Pore size distribution of materials with pore size above 0.7 nm such as molecular sieve, catalyst, activated carbon, and other porous materials.
  • DatasheetDatasheet
  • Datasheet
  • Datasheet
  • Features
    • Test Module
    • Internal temperature of test module can be controlled through Real-time monitoring, ensuring accuracy of adsorption detection.
    • Saturated Vapor Pressure P0
    • Using independent P0 pressure sensor for P0 value by inching test, guarantees the reliability of experimental data. Atmospheric pressure input method to determine P0 also be selected.
    • Datasheet
    • Vacuum System
    • It’s a multi-channel, adjustable, and parallel vacuum system. Vacuum degree of this system can be controlled in segments.
      This design prevents the sample from being pumped into analyzer. Meanwhile, a delicate part was designed for ensuring cleanliness of vacuum system, minimizing dust pollution.
    • Sample Preparation System
    • In addition to two pretreatment stations, the other two analysis stations can be used in preparing samples. There is no interference between pretreatment stations and analysis stations. Degas temperature can be set individually and controlled from ambient to 400 ℃.
    • Micropore Distribution
    • Accurately apply the HK method, SF method and other micropore analysis model, the aperture deviation of micropore is less than 0.02 nm.
    • Pressure Sensor
    • Micro 200C with 1torr (selectable 0.1torr) makes the partial pressure of P/P0 up to 10-7 - 10-8 (N2/77K) in the physical adsorption analysis.
    • Datasheet
    • Cold Free Space
    • Cold free space can be corrected by Helium automatically, ensuring accuracy of test results.
      This calibration method is suitable for testing of any powder or particle material.
    • Control of Liquid Nitrogen level
    • Using High volume (3L) Dewar flasks and working with the seal cover assure a constant thermal profile along the length of sample tubes and P0 tubes throughout testing process.
    • Turbo Molecular Pump
    • Molecular pump is a standard configuration part on the Micro 200C. The ultimate pressure is up to 10-8 Pa, providing a strong support for micropore analysis in the ultra-low pressure. The smallest micro-pore diameter can be tested is 0.35 nm.
  • JWGB-BK Control and Analysis Software
    • JWGB-BK Software is intelligent software in operation control, data acquisition, calculation and analysis and report generation on the Windows platform. This software can communicate with the host through the LAN port and remotely control many instruments at the same time.
    • Clear tabular reports include:
        Adsorption and desorption isotherms
        Single-/Multipoint BET surface area
        Langmuir surface area
        STSA-surface area
        pore size distribution according to BJH
    • Datasheet
    • Datasheet
    • JWGB-BK Software adopts a unique intake control method, the pressure in adsorption and desorption process is optimally set in six- stage; this flexible design is helpful for improving test efficiency.
    • Datasheet
    • Changes of the pressure and temperature inside the manifold can be observed directly in the test interface which is convenient for sample test and instrument maintenance.
      Current state of analyzer can be intuitively understood with the indicator light and event bar.
      Each adsorption equilibrium process is dynamically displayed on the test interface. Adsorption characteristics of the sample can be easily understood.
    • Datasheet
  • Typical analysis examples
  • BET repeatability is only 0.0015 m2 / g in the test of very low surface area powder
  • Datasheet Datasheet
  • Analysis value of pore size distribution in activated carbon materials as follows:
  • Datasheet Datasheet
  • Microporous analysis Report of carbon materials as below:
  • Datasheet Datasheet
  • Specifications
  • FeatureMeso 112 Meso 222Meso 122W
    Adsorbed GasNon corrosive gases, such as N2, Ar, Kr, H2, O2, CO2, CO, NH3, CH4, etc.
    Pressure Sensor at
    Analysis Station
    1000 torr1000 torr, 10 torr 1000 torr,10 torr,
    1 torr (0.1torr can be selected)
    Accuracy: ±0.15% (F.S.)
    Degas System Samples at 2 stations can be pretreated simultaneously under vacuum with heating.
    Degas TemperatureAmbient to 400 ℃. Free to set up target temperature.
    Vacuum Pump Two-stage rotary vane mechanical
    vacuum pump,
    the ultimate pressure is
    6.7*10-2 Pa
    Pre-mechanical vacuum pump (ultimate vacuum 6.7*10-2Pa) and two-stage adsorption pump technique; the vacuum degree of the test system can be improved by one to two orders of magnitude.
    Analysis Port Samples on the 2 analysis bits can be tested alternately.2 sample tube analysis ports, Parallel test at the same time. Samples on the 2 analysis bits can be tested alternately.
    Test Principle Gas adsorption by static-volumetric analysis
    Measurement Range of
    Specific Surface Area
    0.0005 m2/g to the infinity;
    Standard sample repeat accuracy is less than ± 1.0%
    Test Range of Pore Diameter 0.35 nm-500 nm; pore repeated deviation is less than 0.2 nm in the accurate analysis of porous materials with pore greater than 2 nm 0.35 nm-500 nm; Repeatability of pore size is less than 0.2 nm in the accurate analysis 0.7 nm-2 nm micropore.
    Minimum Pore Volume 0.0001 cm3/g
    Range of Relative Pressure P/P0 10-4-0.99810-4-0.998
    Overall Dimension Depth:740 mm; width: 500 mm; height: 940 mm; weight:75 kg
    Ambient Temperature15-40 oC
    Related Humidity30%-60%
    Electrical SupplyAC220 V ± 20 V, 50/60 HZ, maximum power 300W;
  • Applications
  • Applied FieldTypical Materials Details
    Material Researchceramic powder, metal powder, nanotubeAccording to surface area value of nanotube, hydrogen storage capacity can be predicted.
    Chemical Engineeringcarbon black, amorphous silica, zinc oxide, titanium dioxideIntroduction of carbon black in rubber matrix can improve mechanical properties of rubber products. Surface area of carbon black is one of the important factors affecting the reinforcement performance of rubber products.
    New Energylithium cobalt, lithium manganateIncreasing surface area of electrode can improve Electrochemical reaction rate and promote iron exchange in negative electrode.
    Catalytic Technologiesactive alumina oxide, molecular sieve, zeoliteActive surface area and pore structure influence reaction rate.