Products Description
Application Fields
The system is widely applicable across various industries for measuring specific surface area, pore size distribution, and related physical characteristics of powder and porous materials:
- Battery Materials
Graphite, Lithium Iron Phosphate (LFP), Lithium Manganate, Lithium Cobalt Oxide (LCO), Ternary Materials (NCM/NCA), and other cathode/anode materials. - Petrochemical Industry
Carbon Black, White Carbon Black (Silica), Titanium Dioxide, Alumina, Molecular Sieve Catalysts, Resins, Carbon Fibers, etc. - Pharmaceutical Industry
Montmorillonite, Magnesium Stearate, Micropowder Silica Gel, Talc, and other lubricants;
Diluents such as starch and sugar;
Excipients such as Aluminum Hydroxide.
- Environmental Protection Materials
Activated Carbon, Bamboo Charcoal, Zeolite Molecular Sieves, and other adsorbent and filtration materials. - Nanomaterials
MOFs (Metal-Organic Frameworks), Carbon Nanotubes (CNTs), Graphene, etc. - Other Powder and Granular Materials
Magnesium Oxide, Zirconia, Calcium Oxide, Metal Powders, Ceramic Materials, Mineral Powders, etc.
Performance Indicators
Test Capabilities
Measurement Principles: Static volumetric method; adsorption/desorption isotherm analysis.
Analysis Techniques: Single-point and multi-point BET, Langmuir method, BJH method for pore volume and distribution, DR and DA theory, t-plot method for external surface area, true density measurement.
Software: Advanced online data analysis and integrated test system ensures stable and precise results.
Measurement Range & Accuracy
Specific Surface Area Range: 0.0005 m²/g – no known upper limit.
Pore Size Range: 2 nm – 500 nm.
Repeatability: Specific surface area error ≤ ±1.0%.
Sample Handling
Dual Sample Testing: Two samples can be tested simultaneously, with independent degassing and measurement systems.
Contamination Prevention: Separate pipelines avoid cross-contamination, enhancing measurement reliability and instrument lifespan.
Test Modes
Integrated Modes: Includes “Single Nitrogen Test Mode” and “Nitrogen + Helium Standard Mode”.
Nitrogen + Helium Mode meets international standards and delivers high consistency and accuracy.
Single Nitrogen Mode is ideal for helium-adsorbing samples at low temperature.
Test Gases
Standard: High-purity Nitrogen (N₂).
Optional: Argon (Ar), Krypton (Kr), Helium (He).
System Configuration
Vacuum System
Pump: Imported dual-stage vacuum pump (external or built-in), with automated software control to extend lifespan.
Pipeline: Stainless steel micro-welded vacuum lines with all-metal VCR fittings minimize dead volume and maintain ultra-high vacuum.
Leak Rate: ≤ 1 × 10⁻¹⁰ Pa·m³/s.
Pressure Control & Measurement
Partial Pressure (P/P₀) Control: Range 10⁻⁴ – 0.998.
Sensors: Imported high-precision silicon membrane pressure sensors with 0.15% accuracy (of reading); enhanced resolution from 4 Pa to 1 Pa.
Digital Communication: RS485/RS232 ensures higher data accuracy than traditional analog systems.
Control System
Automation: Integrated pneumatic valve control with high stability and anti-interference performance.
Calibration & Protection
Calibration Gas: Optional helium for cold free space volume calibration.
Safety Door: Transparent safety door prevents operation errors and protects personnel and hardware.
Liquid Nitrogen Management: Proprietary EASY-V level control maintains constant LN₂ level, eliminating cold space fluctuation errors.
LN₂ Dewar: 4L imported stainless-steel inner container allows continuous 72-hour operation without refilling or insulation.
