Brief introduction JW-BK224 has been awarded the China Metrology Institute test certificate, ISO9001 certification and CE certification, which is the national technical appraisal, control precision and test accuracy to reach the international advanced level, has been widely used in china. Features integrate specific surface area, the micro hole and the medium hole many kinds of test functions in one, comprehensive test solution;adopt the imported vacuum pump, and the system has a vacuum degree of 4 * 10-2Pa, which is suitable for long-term continuous use; Imported capacitive film pressure sensor, wide range, high precision, fast and stable, good stability; pressure sensor accuracy is 0.15% (read value), compared with the full range of 25 times the accuracy of the calibration, the highest level of the world. With 4 sample analysis bits, 4 samples are pre processed, the test system and the pretreatment system can work simultaneously, and the mutual interference is not disturbed; Technical parameter Specific surface area: Single point and multi point BET surface Langmuir surface T-plot surface area T-plot method for the total internal surface area of the micro pores BJH adsorption and accumulation of total pore surface area BJH desorption cumulative total pore surface area Pore volume measurement: Single point total pore volume BJH adsorption cumulative total pore volume BJH desorption cumulative total pore volume T-plot method for the total pore volume of micro pores Average pore diameter: Average pore size Average pore size of BJH BJH desorption average pore size Most can be a few aperture Pore size distribution: BJH adsorption and desorption pore size distribution (dV/Dr-D) and (dV/dlogD-D) BJH adsorption and desorption pore size distribution (or cumulative distribution) Pore size distribution of MP Nitrogen adsorption instrument _ specific surface area and pore size distribution tester _ porosity testinginstrument performance index of surface area and porosity: Measuring range: surface ≥0.01M2/g, no upper limit diameter of 0.35 ~ 400nm Repeat accuracy: ≤± 2% Sample size: 4 sample, 4 pre treated sample Sample types: powder, particles, fibers, sheets, etc. Test efficiency: multipoint BET surface 10 ~ 15 minutes per sample The pore size distribution of each sample was determined from the adsorption isotherm by 100 minutes. Adsorption, desorption isotherms and pore size distribution of each sample to 3.5 hours Adsorbed gas: in addition to nitrogen (high purity N2), according to the need can also be used Kr, CO2, Ar, etc. Nitrogen partial pressure: P/Po 0.0001 ~ 0.995, the minimum can be resolved relative pressure of 5 x 10-5 Limiting vacuum degree: 4 x 10-2Pa Pressure accuracy: ≤± 0.15% (P.S)
Brief introduction JW-BK224 has been awarded the China Metrology Institute test certificate, ISO9001 certification and CE certification, which is the national technical appraisal, control precision and test accuracy to reach the international advanced level, has been widely used in china.
