Water vapor transmission rate (WVTR) of plastic films and sheeting

Determination of the water vapor transmission rate (WVTR) according to the ASTM F1249 standard. WVTR describes the amount of water vapor that passes through a material over a set period. It is an important quality indicator in food and cosmetics packaging, as an effective moisture barrier is critical to keeping products fresh and preventing spoilage.

In this WVTR test, two samples per material are measured simultaneously to ensure the reliability of the measurement. The results are expressed as g/m2/day.

Please disclose the desired temperature (from 18 to 40°C) and the desired relative humidity (from 20% to 100%) when placing the order.

This measurement is applicable for plastic films and sheeting materials with WVTR values between 0.005 and 2400 g/m2/day. If you wish to test finished packaging instead, check out the WVTR measurement for packages.

Suitable sample matrices
Plastic films and sheets with smooth surfaces. Maximum thickness 2.5 mm. The expected WVTR value should be between 0.001 and 2400 g/m2/day.
Required sample quantity
At least three sheets with minimum dimensions of 10 x 10 cm, but preferably 20 x 20 cm to ensure optimal quality.
Typical turnaround time
3 weeks after receiving the samples
Detection limit
0.005 to 2400 g/ m2/day
Available quality systems
Accredited testing laboratory
Device types

Pricing and online order

Price per sample (Excl. VAT):
360 €

We also charge a 97 € service fee per order.

Large batches of samples are eligible for discounts.

Samples are entered during checkout.

Our experts review all orders to ensure the testing method is suitable for your needs and samples.

Questions? We're happy to help.

Questions? We're happy to help.

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