Test Instrument

Wvtr Water Vapor Transmission Rate Test Equipment with Humidity Sensor

Pubtester Instruments Co., Ltd.
  • Number of Specimens:1~12
  • Resolution:0.0001 G
  • Temperature Range:5~95 Degree
  • Humidity Range:10%Rh~98%Rh
  • Air Velocity:0.5~2.5 M,S
  • Specimen Thickness:3 mm

Base Info

  • Model NO.:WVTR-W32
  • Test Area:33 Cm2
  • Specimen Size:Dia 4 mm
  • Trademark:Pubtester
  • Origin:Jinan, Shandong
  • Production Capacity:10 Sets,Quarter


Extended applicationInverted Cup MethodMount film or sheeting in test dish, cover upper surface of specimen with distilled water, and make the lower side in certain humidity. Generate a constant humidity difference between two sides; water vapor permeates through specimen and measure weight changes in different time to obtain the water vapor transmission rate.
NOTE: inverted cups are requiredArtificial SkinArtificial skin has to meet standard requirements for water vapor transmission rate to ensure better breath performance. This instrument can be used to test water vapor permeability of artificial skinCosmeticWater vapor permeability of cosmeticsAseptic FilmsAseptic wound protecting films, medical plasters and protective clothing materialsLCD DisplayWater vapor transmission rate of LCD display and its relevant sheetSolar Back-sheetsWater vapor transmission rate of solar Back-sheets and its relevant sheetPaint FilmAll types of paint filmsBiodegradable FilmsTest water vapor permeability of various sorts of biodegradable films, e.g. starch-based packaging films
Technical specifications
Test Range0.1~10,000 g/m2·24h  (Water Method)
0.1~2,500 g/m2·24h  (Desiccant Method)
Number of Specimens1~32(Independent testing results)
Test Accuracy0.01 g/m2·24h
Resolution0.0001 g(Customization)
Temperature Range5ºC~95ºC(Standard)
Temperature Accuracy±0.1ºC(Standard)
Humidity Range10%RH~98%RH(Standard is 90%RH)
Humidity Accuracy±1%RH
Air Velocity0.5~2.5 m/s (Customization)
Specimen Thickness≤3 mm (Customization)
Test Area33 cm2
Specimen SizeΦ74 mm
Gas SupplyAir
Gas Supply Pressure0.6 MPa
Port SizeΦ6 mm PU tubing
Power Supply220VAC 50Hz / 120VAC 60Hz
Instrument Dimension560mm (L) × 650mm (W) ×420 mm (H)
Net Weight90Kg

Note 1: Refers to the relative humidity on both sides of the film, the humidity in the test chamber is 10%RH-30%RH.

Note 2: Refers to the relative humidity on both sides of the film, the humidity in the test chamber is as follows:
Temperature:45ºC, Humidity:10%RH-90%RH
Temperature:50ºC, Humidity:10%RH-80%RH
Temperature:55ºC, Humidity:10%RH-70%RH

ASTM E96, ASTM D1653, GB 1037, GB/T 16928, YY/T0471, TAPPI T464, ISO 2528, DIN 53122-1, JIS Z0208, YBB 00092003
Standard configuration: Instrument, Professional Software, Test Dishes, Desiccant Tube, Automatic Moisture Filter, Standard Weight, Communication Cable, Round Sample Cutter, Valve Set and Reference Film

Optional configuration:Air Compressor, Desiccant, GMP software

1. The gas supply port of the instrument is Φ6 mm PU tubing;
2. Customers will need to prepare for gas supply and distilled water.

Wvtr Water Vapor Transmission Rate Test Equipment with Humidity Sensor
Wvtr Water Vapor Transmission Rate Test Equipment with Humidity Sensor


Are you a manufacturer or trading company?
We are the manufacturer and trading combo, which specialize in material testing instruments such as plastic package, medical device, facial mask, protective clothing and pharmaceutical package, etc. We located in Jinan, Shandong, China.

Do you have any certificate?
We have obtained CE certificate, passed ISO 9001, IPMS management system certificates, and have 18 utility model patents and 4 software copyright certificates.

How about the installation?
The user's manual specifies the installation requirements with details. We will advise the relative information in advance, such as power supply, space, required temperature, humidity, etc.

Do you have after-sales service?
We will carry out the equipment inspection before delivery. If the machine does not work properly, we can make a remote control service to help dealing with the failure. We promise to reply within 24 hours and provide solutions within 2 working days.

How about the warranty?
Our warranty is 12 months, lifelong free of charge! User just bear the materials cost and express charge out-of-warranty period.

How long does the delivery time?
For the regular machine, 3-5 working days. For the customized one, 30 days or so.