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Water Vapour Permeability Tester TF165A

4.6 (5 reviews)

Water Vapour Permeability Tester, to determine the resistance of textiles and textile composites (particularly action wear fabrics) to water vapour penetration. Water Vapour Permeability Tester complies with BS 3424/7209, etc. As a professional textile testing machinery manufacturer, TESTEX offer high-quality Water Vapour Permeability Tester at affordable price.




Water Vapour Permeability Tester, to determine the resistance of textiles and textile composites (particularly action wear fabrics) to water vapour penetration. Besides, this water vapor permeability testing instrument consists of 8 containers with water reservoirs, a standard permeable fabric cover, a sample holder ring, and a precision drive system. In the Constant temperature and humidity environment, the sample was covered in the discharge water sample dish, after a certain time the water vapor crossed from a fixed area of the sample, take the weight of the water vapor through, and calculated the vapor through rate and water vapor transmission index.
In addition, the water vapour permeability tester should work in a conditioning room or conditioning chamber. Wet-cup can be converted to do a different test.


  • Different moisture-permeable cups are selectable
  • Foothold at the bottom for smooth operation
  • LCD display test time
  • Automatically stop function
  • Modified mechanical process, it’s more beautiful and durable


  • Rotation Speed: 2rpm
  • Wet-Cup: 8 Pcs
  • Counter: adjustable, automatically stop

Optional Accessories

Reference fabrics specified in BS 7209


15 kg


220/110V 50/60Hz3 A


Length: 540 mmWidth: 540 mmHeight: 470 mm


ISO 8096BS 3424-34BS 7209


  • Keep the machine clean and free from dust.
  • Unplug the machine when it is not to be used for a long period of time.
  • If the power switch does not turn on, replace the fuse next to the power plug.
  • Brush a little grease on the moving and rotating parts every 500 or 600 hours of operation.

Why choose TESTEX Water Vapour Permeability Tester TF165A

Strictly meet standards:

All data for the water vapor permeability testing machine meet the standard parameters, for example, ISO 8096, BS 3424-34, and BS 7209.

Consistency with international third-party laboratories:

The test data are comparable to the test results obtained by well-known international third-party laboratories.

High reproducibility:

Whether is the same set of samples, or different machines of the same model, after multiple tests, the results are consistent.

Longer service life:

TESTEX makes prototypes and then subjects them to rigorous reliability testing in a variety of environments to ensure achieve the expected service life.

User-friendly transparent warranty policy:

Textile testing machines, 14 months free warranty (12 months normal warranty time + 2 months shipping time). Besides, all spare parts, have 3 months free warranty.

We provide full life-cycle support for Water Vapour Permeability Tester TF165A. So feel free to contact our service team with any questions you may have.

Welcome to TESTEX – a professional textile testing instrument supplier – Water Vapour Permeability Tester TF165A is on sale, contact us to get a detailed price quote.


5 reviews for Water Vapour Permeability Tester TF165A

  1. Christine Marion

    Packed well,thanks.

  2. Cliff Kellogg

    This Water Vapour Permeability Tester is very close to my heart.

  3. June Longman

    Great! Like this water vapor permeability tester.

  4. Newman Hudson

    Nice machine! Thanks manufacturer.

  5. Ingram Katharine

    Great water vapor permability unit! Like it.

Leave a customer review

What is Water Vapour Permeability of Fabric?

Water vapour permeability definition: In general, there is a water vapor pressure difference between the front and the back of the fabric, so the water vapor diffuses from the high-pressure air side to the low-pressure air side through the fabric. The water vapour permeable of the fabric refers to the difficulty degree of water vapor passing through the fabric. The water vapour permeability of fabric is an important index to measure the water vapor resistance of clothing.

The Principle of Water Permeability Test

A test specimen is sealed over the open mouth of a test dish which contains water, and the assembly is placed in a controlled environment. Following a period of time to establish equilibrium of the water vapour pressure gradient across the sample, successive readings of the assembled dish are made and the rate of water vapour permeation through the specimen is calculated.

How to Calculate Water Vapor Transmission Rate?

The water vapour permeability index is calculated by expressing the water permeability of textiles as a percentage of the water vapour permeability of a reference fabric which is tested in a water vapor permeability test. After the water permeability test for fabric, the water vapour permeability of the fabric can be obtained according to the water vapor transmission rate unit conversion and the water vapor permeability formula.

Water Vapour Permeability Test Method

The experiment is affected by the test method and the test condition, and the result deviation is large, so it is necessary to select a suitable water vapour permeability test method according to the environment of the products. This instrument is easy to carry and easy to test. It mainly tests the water vapor permeable of fabric in natural environment. In addition, we also have the instrument TF165B, to test the water vapour permeable of fabric under artificially controlled environment.

You will get a more detailed water vapour permeability test procedure if you buy our water vapor permeability tester, please contact us quickly.

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    Q: What's water vapour permebility definition?

    A:  Water Vapor Permeability (Breathability) is the ability of a fabric to allow moisture vapor to be transmitted through the material. It is an essential contributing property to thermal and Physiological Comfort clothing, and is vital in filtration and medical textiles.


    Q: What is water vapor transmission rate testing (water permeability test for fabric)?

    A: This web ( concludes more information about water permeability. You can find it here.



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