Test principle
At a certain temperature, a specific humidity difference is formed on both sides of the sample, and the water vapor enters the dry side through the sample in the permeable cup. By measuring the change of the weight of the permeable cup with time, the water vapor transmittance and other parameters of the sample are obtained.
Reference standard
GB1037, GB/T16928, ASTME96, ASTMD1653, TAPPIT464, ISO2528, DIN53122-1, JISZ0208, YBB00092003
Test application
Used for all kinds of thin, plastic composite film, paper and plastic composite film, geomembrane, co-extrusion film, aluminized film, aluminum foil, aluminum foil composite film, waterproof composite film, waterproof breathable film and other water vapor transmittance test.
Product characteristics
Fully automated testing equipment, high degree of intelligence
Equipped with imported high resolution weighing sensor, high sensitivity of the test system
Weight increase and weight reduction integrated machine, can be used for weight increase method and weight reduction method two test methods
Wide range, high precision, automatic temperature and humidity control, easy to achieve high precision testing
Standard purge wind speed keeps the humidity difference between inside and outside the permeable cup constant
Artificial intelligence intermittent weighing measurement method, effectively reduce the system error
Weighing system intelligent zero clearing, weighing system is equipped with protective cover, reduce the interference of external environment
Standard film and standard weight are provided to ensure the accuracy and universality of test data
9 cavities independent test, 9 wet cup can be carried out independent test, the test process does not interfere with each other, the test results are independently displayed
Support multi-format storage of test data, convenient data import and export
Support convenient historical data query, comparison, analysis and printing and other functions
Technical parameter
Test range: 0.1-10,000/m².24h (conventional)
Sample quantity: 9 pieces (18 pieces, 27 pieces optional)
Test accuracy: 0.01g/m².24h
System resolution: 0.0001g
Temperature control range: 15℃-55℃
Temperature control accuracy: ±0.1℃
Humidity control range: 10%-90% RH(standard 90%)
Humidity control accuracy: ±1%RH
Purge wind speed: 0.5-2.5m/s
Sample thickness: ≤3mm (other thickness can be customized)
Sample size: Φ74mm
Air source pressure: 0.6mpa
Standard configuration
Host machine, professional software, communication cable, moisture permeable cup (9 sets), constant temperature control device, humidity generating device, sampler, weighing system
