Test principal: Continuous Flow Chromatography method� Low temperature nitrogen adsorption

Test methods: Direct Comparison method� BET (single-point� multi-point)� Langmuir surface area

Adsorption gas: N2 (Adsorbate 99.999%）， He (Carrier 99.999%)

Flow control: automatic control program� P / Po 0.05 - 0.35� control accuracy error � 0.5%;

Control efficiency: 0.01 ml / min� each point of P/Po adjustment � 5 seconds

Calibration: the quantitative volume of nitrogen used for calibrating automatically

Measuring range: Surface area � 0.01m2/g� no upper limits;

Sample NO: 4

Test Efficiency: Direct comparison measures specific surface area: 5-8 minutes per sample

BET surface area: 25 minutes per sample

Repeatability Accuracy: � ��1 %

比表面积测试仪应用领域：

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