Water Vapor Transmission Rate Test System W3/330

Jual Alat Uji Water Vapor Transmission Rate Test System W3/330 Kontrol suhu dan kelembaban yang luas dan presisi tinggi untuk mendukung berbagai kombinasi kondisi pengujian non-standar Mode pengujian standar, proporsional dan kontinu memfasilitasi untuk meminimalkan kesalahan yang disebabkan oleh faktor manusia selama proses pengujian Port kalibrasi akses cepat yang nyaman untuk suhu dan kelembaban Film referensi untuk kalibrasi yang akurat


Product Features


This instrument is designed for the determination of water vapor transmission rate of film and package specimens. It has three test modes and is applicable to various materials with high, medium and low water vapor permeability. It is also embedded with high precision electrochemical sensor, which provides a wide test range of 0.001~1000g/m2·24h and durable service life.

  • Wide range and high precision of temperature and humidity control to support various combinations of non-standard test conditions
  • Standard, proportional and continuous testing modes facilitate to minimize errors caused by human factor during testing process
  • Convenient fast-access calibration port for temperature and humidity
  • Reference film for accurate calibration

High Efficiency

W3/330 system is based on the electrolytic sensor method and utilizes Labthink’s latest exclusive patent design of three diffusion cells integrated in one instrument for individual or multiple tests, which improves test efficiency by 3 times. It can be easily connected with 9 satellite bases to accomplish up to 30 tests at the same time.

  • 3 diffusion cells integrated in one instrument with lower space occupancy rate and higher test efficiency
  • 3 distinct or equivalent specimens can be tested individually with independent test results at one operation
  • The system can be easily connected to a maximum of 10 instruments to accomplish up to 30 tests at the same time
  • Water vapor transmission rate and oxygen transmission rate can be obtained at one operation by working with Labthink’s oxygen transmission rate test system together under the control of one computer


The instrument adopts Labthink’s latest operating software with user-friendly operating interface and intelligent data management. It also supports LystemTM Lab Data Sharing System, which ensures uniform data management of test results and test reports.

  • Based on the user-friendly Windows operating interface for easy operation
  • Saves test data in different formats for convenient data transfer
  • Intelligent historical data searching, comparing, analyzing and printing functions
  • Supports LystemTM Lab Data Sharing System for uniform management of test results and test reports


The test specimen is mounted in the diffusion cell, which is subsequently 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 electrolytic sensor where proportion electrical signals will be generated. The water vapor transmission rate is obtained by analyzing and calculating the electrical signals. For package samples, dry nitrogen flows inside the package, and moisturized nitrogen flows outside.


This test instrument conforms to the following standards:
ISO 15106-3, GB/T 21529, DIN 53122-2, YBB00092003


This instrument is applicable to the determination of water vapor transmission rate of:

Basic Applications
  • Films
    Including plastic films, plastic composite films, paper-plastic composite films, coextruded films, aluminized films, aluminum foils, aluminum foil composite films, glass fiber with aluminum foil composite films and many others
  • Sheeting
    Including various sorts of engineering plastics, rubber and building materials, e.g. PP, PVC and PVDC
  • Paper, Paper Board and Composite Paper Materials
    Including paper and paper board, e.g. aluminized paper for cigarette packages and paper-aluminum composite materials
  • Packages
    Including plastic, rubber, paper, paper-plastic composite, glass and metal packages, e.g. Coke bottles, peanut oil packages, Tetra Pak materials, vacuum bags, metal three-piece cans, soft tube packages for cosmetic and toothpaste, and jelly cups
Extended Applications
  • Package Caps
    Test seal performance of different package caps
  • LCD Monitor Films
    Including LCD monitor films
  • Solar Back-Sheets
    Including solar back-sheets
  • Plastic Packages for Drugs and Health Care Products
    Test water vapor transmission rate of plastic bottles for drug and health care products, e.g. eye drop bottles, infusion bags and health care product packages
  • Plastic Pipes
    Including various sorts of pipes, e.g. PPR
  • Blister Packs
    Test oxygen transmission rate of the whole blister packs
  • Aseptic Wound Protecting Films and Medical Plaster Patches
    Test water vapor transmission rate of aseptic wound protecting films, medical plaster patches and other materials
  • Fuel Tanks of Cars
    Plastic fuel tanks are widely used in cars for its light weight, buffering vibration and easy molding characters. But its fuel permeability is the most essential factor. This instrument can be used to test permeability of plastic fuel tanks
  • Battery Plastic Shell
    Battery electrolyte is protected by the plastic shell from outside environment. Battery service life is directly depended on its water vapor permeability. This instrument can be used to test water vapor transmission rate of battery plastic shell
  • Paper Cups and Bowls
    Test water vapor transmission rate of the whole packages for instant noodles and disposable paper cups

Technical Specifications

SpecificationsFilm TestPackage Test
(customization available)
Test Range0.001~40 g/m2·24h (standard)
0.01~1000 g/m2·24h (optional)
0.0001~0.2 g/pkg·d
Number of Specimens1~3 with independent test results
Resolution0.001 g/m2·24h0.00001 g/pkg·d
Temperature Range15°C~55°C (standard)
Temperature Accuracy±0.1°C (standard)
Humidity Range0%RH, 35%RH~90%RH, 100%RH
Humidity Accuracy±1%RH
Specimen Thickness≤3 mm/
Test Area50 cm2/
Specimen Size108 mm x 108 mmOne package with temperature control device: specimen should be smaller than Ф180 mm and lower than 380 mm
Three packages with temperature control device: specimens should be smaller than Ф100 mm, and lower than 380 mm
No size limitation for tests without temperature control device
Carried Gas99.999% high purity nitrogen(outside of supply scope)
Carrier Gas Flow100 mL/min
Carrier Gas Pressure≥ 0.28 MPa
Port Size1/8 inch copper tubing
Instrument Dimension690 mm (L) x 350 mm (W) x 360 mm (H)
Power Supply220VAC 50Hz / 120VAC 60Hz
Net Weight70 kg


Standard Configurations
Instrument, Professional Software, Communication Cable, Vacuum Grease, Diamond Sample Template, Valve Set and Sponge Cushion
Optional Parts
Satellite Base, Accessories for Package Test, Temperature Control Device, Reference Film, Seal Accessories for Package, Sample Cutter and Vacuum Grease
1. The gas supply port of the instrument is 1/8 inch copper tubing;
2. Customers will need to prepare for gas supply and distilled water.


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