Understanding OTR and WVTR Testing for Packaging
Oxygen and moisture permeability can influence how effectively packaging protects a product throughout its intended shelf life. Understanding oxygen transmission rate (OTR) and water vapour transmission rate (WVTR) can therefore be important when comparing materials or evaluating changes to packaging.
In this article, Smithers’ packaging experts explain how OTR and WVTR testing works, what the results can tell you about barrier performance, and how permeability data can support packaging development and material selection.
What you'll learn
- What OTR, WVTR and moisture vapour transmission rate (MVTR) mean
- Why permeability matters for packaging performance
- How laboratory permeability testing works
- How test data can support material comparison and packaging development
Need to measure packaging barrier performance?
Explore Smithers’ oxygen and water vapour permeability testing capabilities for independent OTR and WVTR testing of packaging materials and finished packs.
