The test methods cover the determination of water vapor transmission (WVT) of materials through paper, plastic films, PTFE membrane and other sheet materials.

Test dishes filled with：distilled water in a controlled dry atmosphere, a constant humidity difference is generated between two sides of the test specimen, the water vapor permeates through the specimen and into the dry side, water vapor transmission rate and other parameters can be obtained by measuring the weight changes of the test dish in different time.

Application:

1) Packaging materials of plastic film, composite film, aluminum foil, aluminized film, Sheet, panel, rubber, ceramics etc

3) Packaging containers, such as: glass, bottle, cans, boxes

4) Other applications: solar panel, LCD film, medical patch, etc.

Widely used in quality inspection organizations, drug control institutions, research institutes, packaging, thin film, food companies, pharmaceutical enterprises, personal care industry, electronics industry.

Standard:

BS EN ISO 15106-3-2005, ASTM E398-2013, DIN 53122-2，GB/T 21529-2008, YBB 00092003-2015,

Specifications：

Test range：0.001~50 g/(m2·24h)(film and sheet)

Test precision：0.001 g/(m2·24h)(film and sheet)

Temperature range：15~45℃(5~55℃ optional)

Temperature accuracy：±0.1℃

Humidity range：30~90%RH，100%RH，

Humidity accuracy：±1%RH

Test area：50.24 cm2

Sample size：Φ100 mm

Sample thickness：≤3mm

Number of test sample：1 piece

Carrier gas：99.999% N2(user provide)

Carrier gas pressure：≥0.1MPa

Carrier gas flow：0~100 mL/min

Gas supply port：1/8 inch metal pipe

Instrument size：610×520×400mm

Weight：80kg

Power：500W

Power supply：AC 220V，50Hz

Features：

Principle of Cup Weighing Method.

Computer control, fully automatic test, one-key operation.

Single Chamber design, multiple test modes such as smart mode can be selected.

Auto Temperature and humidity control system.

Data checking trail and traceability.

System usage log record.

Built-in ambient temperature sensor and humidity sensor.

Traceable reference film calibration

Supports DSM system (DSM, lab data management system, optional).

5-level user authority management.