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Test principle: the static volumetric method, gas adsorption;

Analysis Models: BET, Langmuir, BJH, t-plot, DR, MP and NLDFT;

Measuring range: surface area ≥ 0.005M2/g, no upper limit; pore size 2 _ 500nm; pore volume 0.0001cc/g, no upper limit;

Sorption gas: N2 (high purity); Ar, Kr, CO2, etc. available

Analysis No: Two independent analysis ports

Degassing stations: Two ports

Sample Type: powders, granules, fibers, flakes and other materials

Transducer：Two transducers, 0-1000 torr P.S (0-133kpa);

Test Efficiency: multi-point BET surface area _12 minutes per sample;

Determination pore size distribution from adsorption isotherms _1.5h per sample;

Determination pore size distribution from adsorption and desorption isotherms _3.5 h per sample.

Nitrogen Partial Pressure: P/Po 4×10-5 _ 0.998, the minimum resolvable relative pressure  5 × 10-5

Ultimate vacuum: 4.0 × 10-2Pa（3×10-4  torr）

Pressure Accuracy: ≤ ± 0.15% (F.S)

Repeatability accuracy: surface area ≤ ±1.0 % （surface area）;  ≤2nm (pore size)