Overview
JB-2020 Specific surface area tester is a product of JINGXIN brand. According to the principle of dynamic low temperature nitrogen adsorption, it adopts high Sensitivity Sensor and dual gas source dynamic test method to test with helium as Developing solvent and nitrogen as adsorption gas. The instrument refers to the national standard GB/T19587-2017, and the proofreading adopts national GBW (E) 130275 and other standard materials. It has the advantages of reasonable structure, stable performance, high accuracy, fast Test speed and simple operation. It has no special requirements for Operating Environment. It is suitable for rapid testing of the specific surface area of powder materials in various industries, especially compared with small surface samples.
Features
1. Proprietary High Accuracy Standard Sample injector ensures stable and accurate standard gases of various volumes.
2. Although there is only one workstation, it is economical and practical, with a short test time and high efficiency, about 3 minutes for each sample.
3. High Sensitivity Detector, Operating temperature is low, long life, the detector will not be damaged due to changes in gas composition.
4. The analysis software can be run under the XP/win10 system. The software has complete functions, which is convenient for comparative analysis of test results. The test results can be displayed, saved or printed. Output test reports have functions such as storage, query, comparison, editing, and deletion.
Principle
When the sample tube is placed in the liquid nitrogen cup, the nitrogen in the mixture is adsorbed by the sample, the sample tube leaves the liquid nitrogen, and the nitrogen adsorbed by the sample is desorbed. According to the Response Linear dispersion of desorption and the Response Linear dispersion of the standard volume gas, the specific surface area of the tested sample can be calculated.
Applications
Specific surface area measurement of porous material powders such as graphite, lithium cobaltate, nickel hydroxide, lithium manganate, lithium titanate, lithium carbonic acid, powder, catalyst, Adsorbent, cement, ceramic raw materials, etc.
Steps
1. Place the sample tube into the liquidnitrogen cup to make the nitrogen in the mixture be adsorbed by the sample.
2. The sample tube leaves the liquidnitrogen and is desorbed by the nitrogen gas adsorbed by the sample.
3. Calculate the specific surface area of the tested sample according to the Response Linear dispersion of desorption and the Response Linear dispersion of standard volume gas.
Notice
• The test gas requires high-purity helium and nitrogen.
• Power Supply is AC220V +/- 22V, 50Hz +/- 0.5Hz.
• Environmental requirements: Temperature 5 ℃~ 35 ℃, Humidity < 85%.
