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WVTR-I1 Water Vapor Permeability Analyzer

Test Range: Film:0.001~ 100 g/m2 ·24h (Normal)
Resolution: 0.001 g/m2 .24h
Specimen Area: 50cm2
Test Temperature: 5℃~ 95℃
  • WVTR-I1

  • NADE

  • AC 220V 50Hz

  • 1

  • 1 year

  • China

Product Description


It is designed and manufactured based on the infrared sensor method, used to measure the water vapor transmission rate of barrier materials with high and medium moisture barrier properties with a wide testing range and high testing efficiency. WVTR-I1 Water Vapor Permeability Tester is applicable to determination of water vapor permeability of plastic films, laminated film, high barrier materials, back sheet, sheeting, paper, sheet metal, packages and other relative packaging materials in food, pharmaceutical, medical apparatus, consumer goods, photovoltaic and electronic industries, etc. It can also be extended to test the water vapor permeability test of bottles, bags, tubes and other containers.

Test Principle

The test specimen is mounted in the diffusion cell, which is divided into a dry chamber and a controlled-humidity chamber. The dry side of the specimen is swept by a flow of dry nitrogen, and the water vapor permeating through the specimen from the controlled-humidity chamber is carried by dry nitrogen to the infrared sensor where proportion electrical signals will be generated. The water vapor transmission rate is obtained by analyzing and calculating the electrical signals.


Advanced technology

- High-precision laser pulse modulated infrared sensor improves the test accuracy and stability
- Precise flow controller and automatic gas flow control effectively ensure the stable operation of the test process
- World first advanced water circulated temperature control system, realized temperature auto control and wider temperature range
- Independent temperature control of upper/lower chamber and sensors, effectively ensured the accuracy of the test results
- Self-developed pipeline gas system, effectively ensured system seal ability of gas pipelines
- Sample griping adopts self-developed anti-side leakage technology, ensured testing accuracy
- Integrated with fully automatic double pressure humidity control method makes wide range of humidity control

High Level configuration

- Multiple test modes of manual, ratio, and cycle are optional
- Manual, ratio, continuous mode for different testing requirement
- Automatic power failure saving function to avoid test interruption
- Automatic record of the whole testing process, result judgement and results saving function
- Efficient testing, low nitrogen consumption and short test time
- System self-detection function to avoid continuing testing in the state of failure
- Real-time monitoring of gas flow, automatic alarm when gas running low
- Rapid access to the temperature and humidity calibration port, convenient to quick calibration





Water vapor transmission rate of plastic films, paper-plastic composite films, coextruded films, aluminum foils, aluminum composite films, glass fiber aluminum foil composite films and many others.


Water vapor transmission rate of PP, PVC and PVDC sheets, metal foils, rubber pads, silicon wafers and other sheeting materials.

Paper, paper board and composite materials.

Water vapor transmission rate of cigarette aluminized paper, paper aluminum-plastic composite sheet and other paper and cardboard


Water vapor transmission rate of plastic, rubber, paper, paper-plastic composite, glass and metal packages, e.g. plastic bottles, pouches, coated paper cartons, vacuum bags, metal three-piece cans, plastic packages for cosmetics, soft tubes for tooth paste, jelly and yogurt cups.



Package closure

Water vapor transmission rate of all types of package closure

LCD display

Water vapor transmission rate of LCD display and its relevant sheet.

Solar Back-sheets

Water vapor transmission rate of solar Back-sheets and its relevant sheet.


Water vapor transmission rate of PPR and other types of pipes

Blister Packs

Water vapor transmission rate of whole blister packs

Aseptic protective film, medical plaster patch

Water vapor transmission rate of aseptic protective film, medical plaster patch

Battery Plastic Shell

Water vapor transmission rate of battery plastic cell




Test Range

Film0.001~ 100 g/m2·24h (Normal

Container0.00001~ 0.25 g/pkg·24h (Optional)


0.001 g/m2 ·24h

Specimen Area


Specimen Thickness

≤3 mm (Accessories needed for other thickness)

Test Mode

Single chamber

Test Temperature

5℃~ 95℃

Temperature Accuracy


Test Humidity

0% RH35%~95%RH ,100%RH (Auto-control)

Humidity Accuracy


Carrier Gas

99.999% High-purity Nitrogen (outside of supply scope)

Carrier Gas Flow

0~200 mL/minAuto-control

Gas Supply Pressure


Port Size

1/8" metal tube


585 mm (L)×640 mm (W)×380mm (H)

Power Supply

AC 220V 50Hz

Net Weight



ASTM F1249, ISO 15106-2, TAPPI T557, JIS K7129ISO 15106-3, DIN 53122-2, GB/T
26253, GB/T 21529, YBB 00092003, YBB 00092003,


Standard configuration: Instrument, sampler, precise pressure control valve, vacuum grease, reference film
Optional configuration: Container testing accessories, temperature and humidity control device for container fixtures
Note:Gas supply and distilled water need to be prepared by customer.