Wbl-820 Automatic Specific Surface Area And Porosity Analyzer, 700 X 700 X 800mm, Shanghai INESA Physico-Optical Instrument CompanyLimited (CAT#: STEM-AIAE-3241-LGZ)

WBL series automatic specific surface area and porosity analyzers refer to ISO9277, ISO15901 international standards and GB-119587 national standards, according to the measurement principle of static volume method, and test the adsorption and desorption process through mass balance equation, static gas balance and pressure measurement. The process is carried out at liquid nitrogen temperature. After a known amount of gas is charged into the sample tube, the pressure will drop, and the molar mass of the adsorbed gas at the adsorption equilibrium is calculated. Through the measured equilibrium adsorption capacity, the theoretical model is used to obtain the single-point and multi-point BET specific surface area, Langmuir specific surface area; BJH mesopore, macropore volume, area distribution, total pore volume; t-plot micropore Volume and surface area, Dubinin-Astakhov micropore distribution, Horvath-Kawazoe micropore distribution; parameters such as density function theory (DFT) and Monte Carlo (MC) pore size distribution models.

Specific surface area: 0.01㎡/g to no upper limit
Pore size analysis range: 3.5 to 5000 angstroms
Test principle: Low temperature nitrogen physical adsorption (static volume method)
Adsorbed gas: nitrogen
P/P0 range: 1×10-6―0.995
Pressure and temperature measurement: imported absolute pressure sensor 0-133KPa, accuracy 0.12%, 4 temperature sensors: PT-100, accuracy 0.1°C 1
Dewar: 2L, 80 hours duration
Vacuum Pump: Mechanical Pump
Ultimate vacuum: 1.0×10-4Torr
Measurement software: adsorption/desorption isotherm determination
Physical parameters: 700 X 700 X 800mm, 40kg (excluding vacuum pump)
Processing capacity: 2 samples for simultaneous measurement, 3 samples for processing

1. Modular air circuit design: WBL series automatic specific surface area and porosity analyzers introduce advanced design concepts, adopt a unique modular all-stainless steel vacuum air circuit design and advanced anti-leakage and pollution-free measures, thus ensuring high The realization of vacuum avoids the disadvantage of easy leakage due to too many connecting pipe joints.
2. Constant temperature: The self-developed metal dewar flask can store liquid nitrogen for more than ten days due to its unique internal structure design, and there is almost no loss of liquid nitrogen during the experiment, thus ensuring the constant temperature of the tested sample. At the same time, it avoids the defect that the glass Dewar bottle is fragile and unsuitable to move.
3. The use of multiple high-precision sensors and 22-bit AD conversion devices ensures the accuracy of the calculation of specific surface area and aperture.
4. Through the experiment of density function theory (DFT) and Monte Carlo (MC) pore size distribution model, the practical application of specific surface area and porosity analyzer is fully grasped, and the technical indicators are compared with international products in the same industry.
5. Operation automation: The adsorption and desorption processes are all controlled by computer without manual operation.

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