Overview
JB-5 type Specific surface area tester measures the specific surface area of solid substances according to the national standard GB/T19587-2017 gas adsorption BET method, and uses nitrogen adsorption dynamic method to measure the specific surface area of powder. The instrument has 4 working analysis stations, which can test the specific surface area of 4 samples in sequence. Analysis range is from 0.0005m ²/g to no upper limit. Test accuracy and reproducibility are good. Using dual gas source dynamic gas chromatography, CG, helium as Developing solvent and nitrogen as adsorbed gas, it can quickly test the specific surface area of powders, particles and other materials in various industries. It is suitable for industries with large sample output and many varieties.
Features
1. The instrument structure is reasonable, the performance is stable, the accuracy is high, the Test speed is fast, and there is no special requirement for the Operating Environment.
2.4 workstations, effectively improving the testing efficiency, each sample is tested for about 5-7 minutes.
3. High Sensitivity Detector, Operating temperature is low and long life, the detector will not be damaged due to changes in gas composition.
4. High-precision steady flow regulator valve to ensure uniform and stable test gas, to ensure accurate test results.
5. Dewar bottle with large diameter capacity 500mL, Vacuum Glass liner, long holding time.
6. The software is fully functional, convenient for comparative analysis of test results, and supports online saving, viewing, or printing.
Principle
The instrument adopts dual gas source dynamic Gas chromatography, CG, using helium as Developing solvent and nitrogen as adsorption gas as test gas. According to the principle of low temperature dynamic nitrogen adsorption, the solid surface of different samples is analyzed and the test process is automatically completed.
Applications
Specific surface area analysis of various powders and particles, such as graphite, lithium cobaltate, nickel hydroxide, lithium manganate, lithium titanate, lithium carbonic acid, pharmaceutical powder, catalyst, Adsorbent, cement, ceramic raw materials, etc.
Standards
ISO-9277、GB/T19587-2017
Steps
1. Load the sample into the sample tube.
2. Sample pretreatment.
3. Automatically complete the test analysis under computer control.
Notice
• The test gas requires high-purity helium as the Developing solvent and high-purity nitrogen as the test gas.
• Instrument Power Supply is AC220V +/- 22V, 50Hz +/- 0.5Hz.
• The sample testtube adopts U-shaped sample tube of high-quality temperature-resistant GG material.
• The test method supports single-point testing and comparative testing.
• The sample change test is easy to operate and can be continuously tested without shutting down.
