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Water vapour transmission rate (WVTR)/ Sd- value (water vapour diffusion-equivalent air layer thickness)
Determination of the Sd value according to the gravimetric method on diffusion open and diffusion inhibiting materials with Sd values of approx. 0.03- 10 m ( equivalent to a WVTR of approx. 4- 800 g/(m²xd) depending on the material and test conditions) as a quintuple determination. For diffusion-inhibiting, diffusion-blocking and diffusion-proof materials with Sd values of approx. 10- >1500 m (corresponds to a WVTR of approx. 0.005- 125 g/(m²xd) depending on the material and test conditions), we recommend the more rapid and more cost-effective electrolysis method (then deviating from the standard as a double determination).
| test method: | permeation |
| Norms: |
DIN EN 1931 (2001-03) DIN 53122-1 (2001-08) DIN EN ISO 12572 (2017-05) DIN EN ISO 15106-3 (2005-05) |
| Needed sample size: | optimum: 5 DIN A 4 sheets without folds, creases or other damages |
Standardprüfungen
WVTR / Sd value water vapour barrier materialsDetermination of the SD value (water vapor diffusion equivalent air layer thickness) of building materials and products that are used as vapor barrier, electrolytic measurement according to ISO 15106-3 (suitable for Sd-values in the range of approx. 50 - >1500 m).
WVTR/ Sd- value breathable materials
Determination of the Sd- value (water vapor diffusion equivalent air layer thickness) of building materials and products, which used as permeable (breathing) materials, gravimetric measurement according to DIN EN ISO 12572 / DIN EN 12086 (suitable for Sd-values in the range of approx. 1 - 100 m).
back to overview permeation
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Your contact person
Matthias Böhne
+49 441 94986-11
matthias.boehne@innoform.de
Examinations in this area
- Carbondioxyde transmission (CO2 TR) rate of plastic films, laminates, coated papers, Alufoils, etc.
- Determination of (residual) oxygen and carbon dioxide content in ready-made packages
- Nitrogen transmission rate (N2 TR) of plastic films, laminates, coated papers, alufoils etc.
- Oxygen transmission rate (OTR) of packages, pouches, moulded parts, bottles, etc. (only suitable for barrier materials, see also "i")
- Oxygen transmission rate (OTR) of plastic films, laminates, coated papers, Alufoils, etc.
- Permeation (air, helium, argon, others on request) of plastic films, laminates, coated papers, Alufoils
- Tightness, leakage test/pores/micro-holes/defects
- Water Vapour Transmission Rate (WVTR) of moulded parts, packages, pouches, bottles, etc. (only suitable for barrier materials, see also "i")
- Water vapour transmission rate (WVTR) plastic films, laminates, coated papers and aluminium foils
- Water vapour transmission rate (WVTR), gravimetric test
- Water vapour transmission rate (WVTR)/ Sd- value (water vapour diffusion-equivalent air layer thickness)
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