Water Vapor Permeability Tester

Determine the water vapor permeability (WVP) of shoe uppers.

Product Model: R-F626
Design Standard: ISO 20344, EN 344   

Application:

Determine the water vapor permeability (WVP) of shoe uppers. 

 

Principle:

The test piece is fixed over the opening of a jar, which contains a quantity of solid desiccant. This unit is placed in a strong current of air in a conditioned atmosphere.

The air inside the container is constantly agitated by the desiccant, which is kept in movement by the rotation of the jar.

The jar is weighed in order to determine the mass of the moisture that has passed through the test piece and has been absorbed by the desiccant.

 

Test Standard:

ISO 20344, EN 344   

 

Specification:

Specimen size

Φ34mm

Specimen disc rotate  speed

75±5r/min

Bottle neck diameter

Approx. 30mm

Fan incline angle

120°

Fan rotate speed

1400±100r/min

Test station

6 sets

Testing condition

Temperature 0~80℃

Humidity 30~90%RH

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