Norner offers advanced OTR, WVTR and CO2TR Barrier Calculators with several features.

General terms for NORNER BARRIER CALCULATOR, an internet based calculator provided by Norner AS, Asdalstrand 291, N-3962 Stathelle, Norway (Norner).

New models for calculation of the permeability of structures 

The calculation models are developed under following assumptions: 

Norner is a global market leader of industrial R&D services in polymers.

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