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Quick Details

  • Place of Origin: Guangdong, China (Mainland)
  • Brand Name: GBPI
  • Model Number: W 302
  • Test range: 0.01~10000 g / m2/24h
  • Sample thickness: ≤ 2 mm
  • MOQ: 1

Packaging & Delivery

Packaging Details By wooden case for Water Vapor Transmission Analyzer
Delivery Time 25 days after payment of Water Vapor Transmission Analyzer

W302 Water Vapor Transmission Analyzer



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 Analyzer 



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


Application :

* 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


Working principle

W302 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.


Techinical Parameter

Measurement range

0.02~10000 g/ m2·24h

Measurement accuracy

0.001 g/ m2·24h

Temp. range



Temp. accuracy


Humidity range

0~20%RH drying method (30~90%RH humidity method optional)

Humidity accuracy


Sample thickness


Sample Dia

Φ90mm ,transmission area 50.24cm2

Sample qty




Power supply




1, Automatic test, use friendly,

2, Instrument with configuration of 240,000 true color touch screen to work independently;

3, High-precision sensors with over-range protection, continuous data collection, accurate and reliable data;

4, Software displays the status of each curve ,all the test parameters on the real time showing;

5. Calibration with two method of weights and standard film;

6. The desiccant should be dried per half an month. 


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




Our customer:


Our Laboratory:


 Our team:


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