La description

Test principle: the static volumetric method, gas adsorption;
Analysis Models: BET, Langmuir, BJH, t-plot, DR, αs-plot, MP, HK, SF, and NLDFT;
Measuring range: surface area ≥ 0.**5M2/g, no upper limit; mesoporous and macroporous 2 _ **0nm; micropore size 0.*5nm _ 2nm; pore volume 0.***1 cm3/g, no upper limit.
Sorption gas:N2 (high purity); Ar, Kr, CO2, CH4, etc. available
Analysis Stations: 2 ports. One analysis station can test the micropore and the other can test the mesorpore.
Sample Type: powders, granules, fibers, flakes and other materials
Pressure Sensor: ***0torr (**3kpa), *0torr (1.*3kpa); 1torr (0.**3kpa) or 0.1torr (0.***3kpa); accuracy≤± 0.*5%（P.S）
P0 tube: there is a separate P0 tube in every analysis port, two in all, controlled by a separate pressure sensor, completely separates from the analysis port, real-time detecting the nitrogen saturation vapor pressure, and participating in the theoretical calculation; also the atmospheric method to determinate the P0 accurately;
Cold trap tube: sample degassing system has a special cold trap device that can effectively remove the water, hazardous substances and other impurities, degassed from the special sample, and it can avoid the contamination of the vacuum system;
Degassing temperature: room temperature ***0℃, accuracy ± 1℃;
Nitrogen Partial Pressure: P/Po 1×***8 _ 0.**8, the minimum resolvable relative pressure 5 × ***7
Ultimate vacuum:≤ *0P*6 Pa（7.5×***9 torr）, mechanical pump and turbo molecular pump.
Pressure Accuracy: ≤ ± 0.*5% (P.S)