Thin film gas permeability tester for film, sheet by the environmental conditions of gas content. 

 Thin film gas permeability tester features: 
 Differential pressure principle, GB1038 and other standards-compliant 
 Semi-automatic, affordable, cost-effective 
 Precision, the data third-party fair and objective 
 Stable and reliable, reproducible data 
 Mean three-cavity design, test efficiency 
 Conventional, fuzzy dual test mode selection 
 Computer monitor, graphics display test data 
 Structure of human design, and friendly human-computer interaction 
 Standard film calibration, calibration is simple and reliable 

 Thin film gas permeability tester testing principles; 
 Pre-treatment samples will be well placed in between the upper and lower test chamber, clamp, open the valve under test chamber on the low pressure chamber (lower chamber) in vacuum, then vacuum the whole system, when the required vacuum, the Close the valve under test chamber to the testing chamber (pressure chamber) filled a certain test gas pressure, on both sides of the specimen to form a constant pressure (adjustable), the role of gas in the pressure gradient, by the high side penetrate to the low pressure side, through the monitoring of low-pressure side of the pressure treatment, the permeability of the amount of sample obtained. 

 Technical parameters of thin film gas permeability tester; 
 Test Range: 0.1 ~ 100,000 cm3/m2 ? 24h ? 0.1Mpa (conventional) 
 Temperature: laboratory ambient temperature 
 Vacuum Resolution: 0.1Pa 
 Vacuum: <26MPa 
 Test gas: O2, N2, CO2 and other gases 
 Air pressure: 0.6Mpa ≤ P ≤ 0.8Mpa 
 Sample size: φ80mm 
 Number of samples: 3 
 Host Size: 670mm (L) × 490mm (B) × 350mm (H) 
 Power: AC 220V 50Hz 
 Weight: 57kg 

 Thin film gas permeability tester Standard: 
 GB 1038, ASTM D1434, ISO 2556