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Quick Details

  • Place of Origin: Guangdong, China (Mainland)
  • Brand Name: GBPI
  • Model Number: W303
  • Power: Electronic
  • Usage: Water Vapor Transmission Rate Testing Machine
  • Standard: ASTM D1653-03 ,ASTM E96-00e1, ASTM E-398, TAPPI T464.
  • Precision: High precision
  • Principle: Weighting method
  • MOQ: 1Set/pc
  • Payment: TT
  • Color: White

Packaging & Delivery

Packaging Details By wooden case for Water Vapor Transmission Rate Tester
Delivery Time 15 working days after payment

W303 Water Vapor Transmission Rate Tester 



To test the water vapor transmission rate (WVTR) of packaging materials, such as plastic film, composite film, coextrusion film, aluminum-plated film, aluminum foil, infusion bag, sheets, paper, paper board, solar battery panel, cellophane, ceramics and porcelain, and various containers such as bag, pouch, bottle, can, bowl, box, widely used in the industries of food, pharmaceuticals, personal care, household, electronics and so on. 

Water Vapor Transmission Rate Tester  



GB 1037, GB/T 16928, ASTM E96, ASTM D1653, TAPPI T464, ISO 2528, DIN 53122-1, JIS Z0208, YBB00092003, YBB00022002, YBB00112005, YBB00102005



Working principle

W303 Water Vapor Permeation Tester was designed with the principle of weighting method to use weight reduction method to test the water transmittance rate (WVTR) of plastic films. Namely in the regulated temperature, relative humidity conditions, the sample two sides keep the vapor different pressure, measuring the vapor volume passed through, figure out the WVTR value. Unit is g/ m2·24h.



* Films
rigid films, shrik films, stretch films, plastic films, plastic composite films, paper-plastic composite films,aluminized films, aluminum foil, aluminum composite films, high barrier films and many others. Eg. PET, OPP, CPP, LDPE, BOPP

* Sheet
engineering plastics, rubber, waterproof building materials, and thermal insulation materials, e.g. PP, PVC, PVDC, and nylon

paper, plastics, rubber,paper-plastic composite, glass, and metal packages, eg: bottles, containers


Techinical Parameter

Test range 0.01~10000 g / (m2·24h)

Test accuracy

 0.001 g / (m2·24h)
Temperature range 10~50 ℃

Temperature accuracy 

 ±0.1 ℃

Humidity range

Outside the cup ≤ 10 %RH, inside the cup ≥ 90 %


Humidity accuracy



Test area

50.24 cm2

Sample size

Φ 90 mm

Sample thickness

≤ 2 mm

Sample amount

1~3 pieces

Instrument size

122cm×42cm×34 cm



103 kg


750 W

Power supply

AC 220 V, 50 Hz



Precise & Reliable 

  • High precision sensor, continuous data collecting, accurate and dependable. 
  • Test accuracy reaches 0.001 g / (m2·24h), which stays in leading position of the industry. 
  • Adopt the only Standard Films in the industry which are authorized by AQSIQ and developed by GBPI to verify the instrument, and the data are 100% reliable. 
  • The discreteness of data for the same sample is less than 5%. 

Multi-testing Chambers to test samples flexibly and Efficiently 

  • Three chambers with unique sensor in every chamber. Can stop any one of the chambers to change sample, which can effectively enhance the test efficiency. 
  • Three chambers can test three different samples. 
  • Can extend to the maximum of six chambers. Every chamber works independently.  
Easy Operation and Realtime Curves Exhibition 
  • Fully automatic operation, One-click test, automatic judgment and automatic stop. 
  • Supported by professional software. Software interface is simple and easy to operate. 
  • Built-in operating system, can work independently without computer. 
  • Curves of temperature, humidity, weight and transmission rate, real time display and zoom in/out. 
  • Professional test report, can be exported in Office or PDF formats easily. 
Advanced Technology 
  • Configured with a 7-inch color touch screen for setting parameters, display curves and report. 
  • Temperature control adopts international advanced electromagnetic technology.  Program stepping controlling makes the temperature rises and drops automatically. 
  • Carry cutting-edge ARM controlling system, running independently without computer. 
  • Automatic over range protection. 
  • Humidity control utilizes proportioning dry and wet gas, performing excellently. 
  • Parameters are locked with password automatically. 
Wide Test Range 
  • Add external fittings for packaging container test, being able to test bag, pouch, bottle, can, bowl,aluminum foil, aluminum-plated film, and many other packaging containers.  
  • The only tester in the industry that can test High barrier materials like aluminum foil and aluminum-plated film. 
Professional Calibration 
  • Adopt two calibrating methods: Weight calibration and standard film calibration. Configured with appropriative mouthpiece of temperature and humidity.


After sale Service:

1. 2 years coverage

2. Speedy reply, 12hrs response to customer questions

3. Software free update

4. Minor maintenance ---parts ship within 24 hrs

5. Major maintenance---Technical will be sent within 15 days

6. Free inhouse training for customer operator

Company Show

                                                                                        About GBPI                                                                                          

GBPI is a professional manufacturer focused on developing 

and producing packaging material test instruments. Founded in 2002, the company has received IOS9001 certification and reco gnized as high-tech enterprise and software enterprise by national authority. We hold numerous technology patents and software certificates from the national authority, and gained awards for technological progress.




ISO                                                                                              FTA

Gradation of the Certified Reference Materials




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