GTR 736 is based on the differential pressure method, and is professionally applicable to the determination of gas transmission rate as well as solubility coefficient, diffusion coefficient and permeability coefficient of plastic films, laminated films, high barrier materials, sheeting, metal foils, rubber, tires, and permeable membranes.
Features
Vacuum differential pressure method
Computer-controlled with one-button automatic testing
High-accuracy embedded vacuum and temperature sensors
Real-time environment temperature and humidity monitoring
Tests permeability, solubility, and diffusion coefficients
Optional water bath temperature control chamber
Multiple test modes available
24-bit Δ-Σ AD system for high precision
Data curve display and DSM system support
Traceable reference film calibration supported
Technical Specification
Test Range: 0.05 – 160,000 cm³/m²·24h·0.1MPa
Resolution: 0.001 cm³/m²·24h·0.1MPa
Sample: One piece
Vacuum Accuracy: 0.1 Pa
Temperature Range: 5℃ – 95℃ (with controller)
Temperature Accuracy: ±0.1℃
Sample Thickness: < 3mm
Sample Size: ≥ 150mm × 94mm
Test Area: 48 cm²
Test Gases: O2, N2, CO2, He, etc. (Flammable/toxic gases like H2, CH4, H2S, etc., on request)