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Automatic BET surface area and porosity analyzer

The automatic specific surface area and porosity analyzer refers to ISO9277, ISO15901 international standards and GB-119587 national standards. According to the measurement principle of static volumetric method, the absorption and desorption process is tested through mass balance equation, static gas balance and pressure measurement. The test process is carried out at the temperature of liquid nitrogen. After a known amount of gas is filled into the sample tube, it will cause the pressure to drop, from which 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; density function theory (DFT) and Monte Carlo (MC) pore size distribution model and other parameters.

⑴ Modular air circuit design: WBL series automatic specific surface area and porosity analyzer introduces advanced design concepts, adopts a unique modular all-stainless steel vacuum circuit design and advanced anti-leakage and pollution-free measures. Therefore, the realization of high vacuum is ensured, and the disadvantage of easy leakage due to too many pipe joints is avoided.
⑵ Constant temperature: The self-developed metal Dewar flask can store liquid nitrogen for more than ten days due to its unique internal structure design. There is almost no loss of liquid nitrogen during the experiment, thus ensuring the constant temperature of the tested sample, and at the same time avoiding the defect that the glass Dewar is fragile and cannot be moved.

⑶ Multiple high-precision sensors and 22-bit AD conversion devices are used to ensure the accuracy of specific surface area and aperture calculations.

⑷ Through the experiments of density function theory (DFT) and Monte Carlo (MC) pore size distribution model, we have fully grasped the actual application of specific surface area and porosity analyzer, and the technical indicators are compared with international products in the same industry.

⑸ Operation automation: The adsorption and desorption process are all controlled by computer, without manual operation.

【Technical characteristics】

1、Single-point and multi-point BET specific surface area, Langmuir specific surface area

2、 BJH mesopore, macropore volume, area distribution, total pore volume 3、 t-plot micropore volume and surface area, Dubinin-Astakhov micropore distribution, Horvath-Kawazoe micropore distribution

4、Density function theory (DFT) and Monte Carlo (MC) pore size distribution model 【Output report】 Direct printing and EXCEL output of adsorption and desorption isotherm, BET specific surface area, Langmuir specific surface area, t-plot micropore volume, BJH pore volume, pore area, total pore volume, total pore area, Dbinin-Astakhov, Horvath-Kawazoe micropores Distribution, NLDFT/GCMC pore distribution, summary report.

【Scope of application】 Research and product testing of various materials, including measurement of various materials such as zeolite, molecular sieve, silica, alumina, soil, clay, catalyst, and organometallic compound framework structure.

Model	TP-810	TP-820	TP-830
Specific surface area	0.01㎡/g to unlimited	0.01㎡/g to unlimited	0.01㎡/g to unlimited
Aperture analysis range	3.5 to 5000 Angstroms	3.5 to 5000 Angstroms	3.5 to 5000 Angstroms
Principles of the test	Low temperature nitrogen physical adsorption (static capacity method)	Low temperature nitrogen physical adsorption (static capacity method)	Low temperature nitrogen physical adsorption (static capacity method)
Adsorbed gas	Nitrogen	Nitrogen	Nitrogen
P/P0 range	1×10-6―0.995	1×10-6―0.995	1×10-6―0.995
Pressure and temperature measurement	Imported absolute pressure sensor 0-133KPa, accuracy 0.12%， 3 pcs temperature sensors: PT-100, accuracy 0.1℃ 1 pc	Imported absolute pressure sensor 0-133KPa, accuracy 0.12% ， 4 pcs temperature sensors: PT-100, accuracy 0.1℃ 1 pc	Imported absolute pressure sensor 0-133KPa, accuracy 0.12% ， 6 pcs temperature sensors: PT-100, accuracy 0.1℃ 1pc
Dewar	2L, duration 80 hours	2L, duration 80 hours	2L, duration 80 hours
Vacuum pump	Mechanical pump	Mechanical pump	Mechanical pump
Ultimate vacuum	1.0×10-4Torr	1.0×10-4Torr	1.0×10-4Torr
Measurement software	Determination of adsorption/desorption isotherm	Determination of adsorption/desorption isotherm	Determination of adsorption/desorption isotherm

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MOQ	1 Set
Trade Terms	EXW, FOB, CIF, CFR
Payment Terms	T/T, L/C
Port of Loading	Any Port of China
Packing Method	Internaional Standard Wooden Case
Transportation Method	By Sea, By Land, By Air, By Express
Supply Capability	100 Sets/Month

* The warranty period is 24 months from commissioning acceptance date on. After the warranty period is over we provide lifelong maintenance and technical service.
* We guarantee the maintenance time no more than 3 working days and response time within 1 hour.
* We build instrument service profile for our clients to record the product service and maintenance conditions.
* After instruments start service, we will pay follow-ups to collect the service conditions.

Chongqing TOP Oil Purifier Co., Ltd

Located at Chongqing city--a southwest electromechanical manufacturing center as well as national municipality, Chongqing TOP is a professional leading manufacturer and supplier of oil purifiers and various related testers. Our company consists of departments respectively for technological development, machinery manufacture, instrument manufacture and quality control etc.

Welcome to visit our website, welcome your inquiry.

Mia (Miss) | Sales Manager
CHONGQING TOP OIL PURIFIER CO.,LTD
Manufacture oil purifiers and supply test equipment.
Add: No. 1, Jianlong N. Rd., Jiulongpo District, Chongqing, China
E: sales10@topoilpurifier.com
Cell: 0086-13983286435 (Whatsapp/Wechat) | Skype: topoilpurifier
Tel: 0086-23-88901306 | Fax: 0086-23-88901306
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